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  1. Article ; Online: Cumulative exposure to hypertriglyceridemia and risk of type 2 diabetes in young adults.

    Lee, Min-Kyung / Han, Kyungdo / Kim, Bongsung / Kim, Jong-Dai / Jung Kim, Moon / Kim, Byungpyo / Heo, Jung / Ahn, Jiyeon / Sohn, Seo-Young / Lee, Jae-Hyuk

    Diabetes research and clinical practice

    2024  Volume 208, Page(s) 111109

    Abstract: ... with an increased risk of developing type 2 diabetes in young adults.: Methods: The study included 1,840,251 ... of 0.: Conclusions: In this large-scale prospective cohort study of young adults, cumulative ...

    Abstract Aim: This study aimed to examine whether cumulative exposure to hypertriglyceridemia is associated with an increased risk of developing type 2 diabetes in young adults.
    Methods: The study included 1,840,251 participants aged 20-39 years who had undergonefourconsecutiveannualhealth checkups and had no history of type 2 diabetes. Participants werecategorized into five groups (exposure score 0-4) based on the frequencies of hypertriglyceridemia diagnosis over a four-year period. The primary outcome was newly diagnosed type 2 diabetes. Exploratory analyses were performed for the different subgroups.
    Results: During a follow-up period of 6.53 years, 40,286 participants developed type 2 diabetes. The cumulative incidence of type 2 diabetes significantly increased with higher exposure scores for hypertriglyceridemia (log-rank test, P < 0.001). The multivariable-adjusted hazard ratios for incident diabetes were 1.674 (95 % CI, 1.619, 1.732), 2.192 (95 % CI, 2.117, 2.269), 2.637 (95 % CI, 2.548, 2.73), and 3.715 (95 % CI, 3.6, 3.834) for participants with scores of 1-4, respectively, compared with those with an exposure score of 0.
    Conclusions: In this large-scale prospective cohort study of young adults, cumulative exposure to hypertriglyceridemia was significantly associated with an increased risk of type 2 diabetes, independent of lifestyle-related factors.
    MeSH term(s) Humans ; Young Adult ; Diabetes Mellitus, Type 2/epidemiology ; Diabetes Mellitus, Type 2/etiology ; Prospective Studies ; Hypertriglyceridemia/complications ; Hypertriglyceridemia/epidemiology ; Incidence ; Life Style ; Risk Factors
    Language English
    Publishing date 2024-01-21
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 632523-3
    ISSN 1872-8227 ; 0168-8227
    ISSN (online) 1872-8227
    ISSN 0168-8227
    DOI 10.1016/j.diabres.2024.111109
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  2. Article ; Online: Characteristics and clinical outcomes in young-onset cholangiocarcinoma.

    Reddy, Sarah / Goksu, Suleyman Yasin / Sanford, Nina N / Kainthla, Radhika / Hsiehchen, David / Sanjeevaiah, Aravind / Jones, Amy L / Karagkounis, Georgios / Al Mutar, Salwan / Ahn, Chul / Beg, Muhammad S / Kazmi, Syed M

    Cancer medicine

    2023  Volume 12, Issue 13, Page(s) 14094–14103

    Abstract: Background: While the incidence of cholangiocarcinoma is rising, little is known about young-onset ... disease. We compared clinical characteristics and outcomes between patients with young-onset ... to identify patients with young-onset cholangiocarcinoma (n = 2520) and typical-onset cholangiocarcinoma (n ...

    Abstract Background: While the incidence of cholangiocarcinoma is rising, little is known about young-onset disease. We compared clinical characteristics and outcomes between patients with young-onset cholangiocarcinoma, diagnosed between the ages of 18 and <50 years, and patients with typical-onset cholangiocarcinoma, diagnosed at age 50 years or greater.
    Methods: We used the National Cancer Database to identify patients with young-onset cholangiocarcinoma (n = 2520) and typical-onset cholangiocarcinoma (n = 23,826). We compared the frequency of demographic and clinical characteristics between the two groups. We compared overall survival between the two groups using multivariable Cox regression analysis after adjusting for age, gender, race/ethnicity, comorbidity, facility type, tumor location, tumor stage, surgical status, and receipt of radiotherapy, chemotherapy and surgery.
    Results: When compared to patients with typical-onset disease (median age 68 years), patients with young-onset cholangiocarcinoma (median age 44 years) were more likely to be non-White (35.0% vs. 27.4%, p < 0.01), and had lower overall comorbidity burden. Patients with young-onset disease had a greater proportion of intrahepatic cholangiocarcinoma (56.0% vs. 45.5%, p < 0.001) and stage IV disease (50.5% vs. 43.5%, p < 0.001). Younger patients were more likely than typical-onset patients to receive definitive surgery (30.9% vs. 25.0%, p < 0.001), radiation (27.7% vs. 19.6%, p < 0.001) and chemotherapy (73.1% vs. 50.1%, p < 0.001). In adjusted analyses, patients with young-onset disease had a 15% decreased risk of death, compared with patients with typical-onset disease (HR 0.85 [95% CI 0.80-0.89], p < 0.001).
    Conclusions: Patients with young-onset cholangiocarcinoma may represent a demographically and clinically distinct group from those with more typical-onset disease.
    MeSH term(s) Humans ; Adolescent ; Cholangiocarcinoma/epidemiology ; Cholangiocarcinoma/therapy ; Bile Ducts, Intrahepatic/pathology ; Bile Duct Neoplasms/epidemiology ; Bile Duct Neoplasms/therapy ; Retrospective Studies
    Language English
    Publishing date 2023-05-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2659751-2
    ISSN 2045-7634 ; 2045-7634
    ISSN (online) 2045-7634
    ISSN 2045-7634
    DOI 10.1002/cam4.6063
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  3. Article: A hermeneutic phenomenological study on the disease experience among young women with breast cancer.

    Ahn, Jeonghee / Lee, Kyoung-Eun

    Asia-Pacific journal of oncology nursing

    2023  Volume 10, Issue 10, Page(s) 100310

    Abstract: ... among this group of young women.: Methods: Participants were purposefully selected from online communities and ... chat rooms in South Korea. A total of 15 young women with breast cancer were included in this study ... discovered at life's extremes, and a steadfast companion on a solitary journey.: Conclusions: Young women ...

    Abstract Objective: Women diagnosed with breast cancer under the age of 40 face distinctive physical and psychosocial challenges resulting from the disease's pathological features and the developmental aspects associated with their youth. This study aims to investigate the lived experience of breast cancer among this group of young women.
    Methods: Participants were purposefully selected from online communities and chat rooms in South Korea. A total of 15 young women with breast cancer were included in this study, and data were gathered through three focus group interviews. The interviews were transcribed verbatim and analyzed using the hermeneutic phenomenology method.
    Results: Four essential themes emerged based on four lifeworld existentials: lived body, lived time, lived space, and lived others. These four essential themes were: a wounded and sick body, life robbed of youth and elderly years, crossroads of growth discovered at life's extremes, and a steadfast companion on a solitary journey.
    Conclusions: Young women with breast cancer face unique challenges due to the intersection of a severe illness and its impact during their formative years. This study offers valuable insights for crafting customized interventions that directly target the physical and psychosocial requirements of young breast cancer survivors, ultimately enhancing their quality of life.
    Language English
    Publishing date 2023-09-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2984639-0
    ISSN 2349-6673 ; 2347-5625
    ISSN (online) 2349-6673
    ISSN 2347-5625
    DOI 10.1016/j.apjon.2023.100310
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  4. Article ; Online: Mental Health-Related Outpatient Visits Among Adolescents and Young Adults, 2006-2019.

    Ahn-Horst, Rosa Y / Bourgeois, Florence T

    JAMA network open

    2024  Volume 7, Issue 3, Page(s) e241468

    Abstract: Importance: Concerns over the mental health of young people have been increasing over the past ... psychotropic medication use among US adolescents and young adults.: Design, setting, and participants ... Participants included adolescents (age 12-17 years) and young adults (age 18-24 years) with office-based ...

    Abstract Importance: Concerns over the mental health of young people have been increasing over the past decade, especially with the rise in mental health burden seen during the COVID-19 pandemic. Examining trends in mental health-related outpatient visits provides critical information to elucidate contributing factors, identify vulnerable populations, and inform strategies to address the mental health crisis.
    Objective: To examine characteristics and trends in mental health-related outpatient visits and psychotropic medication use among US adolescents and young adults.
    Design, setting, and participants: A retrospective cross-sectional analysis of nationally representative data from the National Ambulatory Medical Care Survey, an annual probability sample survey, was conducted from January 2006 to December 2019. Participants included adolescents (age 12-17 years) and young adults (age 18-24 years) with office-based outpatient visits in the US. Data were analyzed from March 1, 2023, to September 15, 2023.
    Main outcomes and measures: Mental health-related outpatient visits were identified based on established sets of diagnostic codes for psychiatric disorders. Temporal trends in the annual proportion of mental health-related outpatient visits were assessed, including visits associated with use of psychotropic medications. Analyses were stratified by age and sex.
    Results: From 2006 to 2019, there were an estimated 1.1 billion outpatient visits by adolescents and young adults, of which 145.0 million (13.1%) were associated with a mental health condition (mean [SD] age, 18.4 [3.5] years; 74.0 million females [51.0%]). Mental health-related diagnoses were more prevalent among visits by male (16.8%) compared with female (10.9%) patients (P < .001). This difference was most pronounced among young adults, with 20.1% of visits associated with a psychiatric diagnosis among males vs 10.1% among females (P < .001). The proportion of mental health-related visits nearly doubled, from 8.9% in 2006 to 16.9% in 2019 (P < .001). Among all outpatient visits, 17.2% were associated with the prescription of at least 1 psychotropic medication, with significant increases from 12.8% to 22.4% by 2019 (P < .001).
    Conclusions and relevance: In this cross-sectional study, there were substantial increases in mental health-related outpatient visits and use of psychotropic medications, with greater overall burden among male patients. These findings provide a baseline for understanding post-pandemic shifts and suggest that current treatment and prevention strategies will need to address preexisting psychiatric needs in addition to the effects of the COVID-19 pandemic.
    MeSH term(s) Humans ; Adolescent ; Female ; Male ; Young Adult ; Child ; Adult ; Mental Health ; Cross-Sectional Studies ; Outpatients ; Pandemics ; Retrospective Studies ; COVID-19/epidemiology
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ISSN 2574-3805
    ISSN (online) 2574-3805
    DOI 10.1001/jamanetworkopen.2024.1468
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  5. Article ; Online: Whole exome sequencing and clinical investigation of young onset dystonia: What can we learn?

    Ahn, Jong Hyeon / Kim, Ah Reum / Park, Woong-Yang / Cho, Jin Whan / Park, Jongkyu / Youn, Jinyoung

    Parkinsonism & related disorders

    2023  Volume 115, Page(s) 105814

    Abstract: ... we performed WES in Korean patients with young-onset dystonia.: Methods: We recruited patients with young ...

    Abstract Background: Dystonia is a heterogeneous movement disorder involving various genetic backgrounds, and the implication of whole exome sequencing (WES) has yet to be clearly elucidated. In this study, we performed WES in Korean patients with young-onset dystonia.
    Methods: We recruited patients with young-onset dystonia based on the new MDS dystonia classification at Samsung Medical Centre from 2015 to 2019. We excluded subjects diagnosed by single gene tests (GCH1, TOR1A, PANK2, PRRT2, and SGCE) or levodopa trials and subjects with focal or possible secondary dystonia. We performed WES in all enrolled subjects and confirmed the results with Sanger sequencing.
    Results: Of the 43 patients, we detected 11 disease-causing variants, classified as either pathogenic or likely pathogenic, in 9 patients (20.9%). Generalized dystonia, infancy-childhood-onset dystonia, and other combined neurologic manifestations were related with PV/LPV. When we retrospectively reviewed the patients with PV/LPV, brain imaging was diagnostic in 3 subjects (HTRA1, SCL20A, and WDR45), clinical characteristics of paroxysmal presentation were observed in 2 (ADCY5 and ATP1A3), and microcephaly was noted in 1 patient (KMT2B).
    Conclusion: Clinical exome sequencing is helpful for the diagnosis of dystonia, especially for that with infancy-childhood onset, and generalized dystonia with other neurologic manifestations. Additionally, careful evaluations and examinations could provide information for selecting candidates for genetic testing.
    MeSH term(s) Humans ; Child ; Dystonia/diagnosis ; Dystonia/genetics ; Exome Sequencing ; Retrospective Studies ; Dystonic Disorders/diagnosis ; Dystonic Disorders/genetics ; Genetic Testing ; Mutation/genetics ; Molecular Chaperones/genetics ; Sodium-Potassium-Exchanging ATPase/genetics ; Carrier Proteins/genetics
    Chemical Substances TOR1A protein, human ; Molecular Chaperones ; ATP1A3 protein, human ; Sodium-Potassium-Exchanging ATPase (EC 7.2.2.13) ; WDR45 protein, human ; Carrier Proteins
    Language English
    Publishing date 2023-08-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1311489-x
    ISSN 1873-5126 ; 1353-8020
    ISSN (online) 1873-5126
    ISSN 1353-8020
    DOI 10.1016/j.parkreldis.2023.105814
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  6. Article ; Online: Increased cardiovascular events in young patients with mental disorders: a nationwide cohort study.

    Park, Chan Soon / Choi, Eue-Keun / Han, Kyung-Do / Ahn, Hyo-Jeong / Kwon, Soonil / Lee, So-Ryoung / Oh, Seil / Lip, Gregory Y H

    European journal of preventive cardiology

    2023  Volume 30, Issue 15, Page(s) 1582–1592

    Abstract: ... of MI and IS. Prevention efforts are needed to prevent MI and IS in young patients with mental disorders. ... Aims: It remains unclear whether young patients with mental disorders have a higher risk ... in young patients.: Methods and results: Young patients aged between 20 and 39 years old who underwent ...

    Abstract Aims: It remains unclear whether young patients with mental disorders have a higher risk of cardiovascular diseases than does the general population. Using a nationwide database, we investigated the prognostic association between the risks of myocardial infarction (MI), ischaemic stroke (IS), and mental disorders in young patients.
    Methods and results: Young patients aged between 20 and 39 years old who underwent nationwide health examinations between 2009 and 2012 were screened. A total of 6 557 727 individuals were identified and subsequently classified according to mental disorders including depressive disorder, bipolar disorder, schizophrenia, insomnia, anxiety disorder, post-traumatic stress disorder, personality disorder, somatoform disorder, eating disorder, and substance use disorder. Patients were then followed up for MI and IS until December 2018. Patients with mental disorders did not show unfavourable lifestyle behaviours or worse metabolic profiles than their counterparts. During the follow-up period (median, 7.6 years; interquartile range, 6.5-8.3), 16 133 cases of MI and 10 509 cases of IS occurred. Patients with mental disorders had higher risks of MI (log-rank P = 0.033 in eating disorder and log-rank P < 0.001 in all other mental disorders). Patients with mental disorders had higher risks of IS except post-traumatic stress disorder (log-rank P = 0.119) and eating disorder (log-rank P = 0.828). After adjusting for covariates, the overall diagnosis and each mental disorder were independently associated with increased cardiovascular endpoints.
    Conclusion: Mental disorders in young patients may have deleterious effects which increase the incidence of MI and IS. Prevention efforts are needed to prevent MI and IS in young patients with mental disorders.
    MeSH term(s) Humans ; Young Adult ; Adult ; Cohort Studies ; Brain Ischemia ; Stroke ; Myocardial Infarction/complications ; Stress Disorders, Post-Traumatic/complications ; Risk Factors
    Language English
    Publishing date 2023-05-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2626011-6
    ISSN 2047-4881 ; 2047-4873
    ISSN (online) 2047-4881
    ISSN 2047-4873
    DOI 10.1093/eurjpc/zwad102
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  7. Article ; Online: Development of a tool for predicting HNF1B mutations in children and young adults with congenital anomalies of the kidneys and urinary tract.

    Kołbuc, Marcin / Kołek, Mateusz F / Motyka, Rafał / Bieniaś, Beata / Habbig, Sandra / Burgmaier, Kathrin / Prikhodina, Larisa / Papizh, Svetlana / Tasic, Velibor / Okorn, Christine / Szczepańska, Maria / Kiliś-Pstrusińska, Katarzyna / Wasilewska, Anna / Adamczyk, Piotr / Tkaczyk, Marcin / Pańczyk-Tomaszewska, Małgorzata / Miklaszewska, Monika / Pawlaczyk, Krzysztof / Bukowska-Olech, Ewelina /
    Jamsheer, Aleksander / Jankauskiene, Augustina / König, Jens / Cheong, Hae Il / Ahn, Yo Han / Kaspar, Sophie / Sikora, Przemysław / Beck, Bodo B / Zaniew, Marcin

    Pediatric nephrology (Berlin, Germany)

    2024  Volume 39, Issue 6, Page(s) 1847–1858

    Abstract: ... children and young adults with known HNF1B mutation status were collected and analyzed retrospectively ... tool for predicting HNF1B mutations in children and young adults with CAKUT. ...

    Abstract Background: We aimed to develop a tool for predicting HNF1B mutations in children with congenital abnormalities of the kidneys and urinary tract (CAKUT).
    Methods: The clinical and laboratory data from 234 children and young adults with known HNF1B mutation status were collected and analyzed retrospectively. All subjects were randomly divided into a training (70%) and a validation set (30%). A random forest model was constructed to predict HNF1B mutations. The recursive feature elimination algorithm was used for feature selection for the model, and receiver operating characteristic curve statistics was used to verify its predictive effect.
    Results: A total of 213 patients were analyzed, including HNF1B-positive (mut + , n = 109) and HNF1B-negative (mut - , n = 104) subjects. The majority of patients had mild chronic kidney disease. Kidney phenotype was similar between groups, but bilateral kidney anomalies were more frequent in the mut + group. Hypomagnesemia and hypermagnesuria were the most common abnormalities in mut + patients and were highly selective of HNF1B. Hypomagnesemia based on age-appropriate norms had a better discriminatory value than the age-independent cutoff of 0.7 mmol/l. Pancreatic anomalies were almost exclusively found in mut + patients. No subjects had hypokalemia; the mean serum potassium level was lower in the HNF1B cohort. The abovementioned, discriminative parameters were selected for the model, which showed a good performance (area under the curve: 0.85; sensitivity of 93.67%, specificity of 73.57%). A corresponding calculator was developed for use and validation.
    Conclusions: This study developed a simple tool for predicting HNF1B mutations in children and young adults with CAKUT.
    MeSH term(s) Child ; Humans ; Young Adult ; Retrospective Studies ; Kidney/abnormalities ; Urogenital Abnormalities ; Urinary Tract/abnormalities ; Mutation ; Kidney Diseases/genetics ; Magnesium ; Hepatocyte Nuclear Factor 1-beta/genetics ; Vesico-Ureteral Reflux
    Chemical Substances Magnesium (I38ZP9992A) ; HNF1B protein, human ; Hepatocyte Nuclear Factor 1-beta (138674-15-4)
    Language English
    Publishing date 2024-01-10
    Publishing country Germany
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-023-06262-9
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  8. Article ; Online: Effects of anteriorly-loaded treadmill walking on dynamic gait stability in young adults.

    Simpkins, Caroline / Ahn, Jiyun / Yang, Feng

    Gait & posture

    2022  Volume 94, Page(s) 79–84

    Abstract: ... affect dynamic gait stability, step length, and trunk angle among young adults during treadmill walking ... Methods: In this between-subject design study, 30 healthy young adults were evenly randomized into three ...

    Abstract Background: Anteriorly-loaded walking is common in many occupations and may increase fall risk. Dynamic gait stability, defined by the Feasible Stability Region (FSR) theory, quantifies the kinematic relationship between the body's center of mass (COM) and base of support (BOS). FSR-based dynamic gait stability has been used to evaluate the fall risk.
    Research question: How does front load carriage affect dynamic gait stability, step length, and trunk angle among young adults during treadmill walking?
    Methods: In this between-subject design study, 30 healthy young adults were evenly randomized into three load groups (0%, 10%, or 20% of body weight). Participants carried their assigned load while walking on a treadmill at a speed of 1.2 m/s. Body kinematics were collected during treadmill walking. Dynamic gait stability (the primary variable) was calculated for two gait events: touchdown and liftoff. Step length and trunk angle were measured as secondary variables. One-way analysis of variance was conducted to detect any group-related differences for all variables. Post-hoc analysis with Bonferroni correction was performed when main group differences were found.
    Results: No significant differences but medium to large effect sizes were found between groups for dynamic gait stability at touchdown (p = 0.194, η
    Significance: Carrying a front load during walking significantly alters the trunk orientation and may change the COM-BOS kinematic relationship and, therefore, fall risk. The findings could inform the design of future studies focusing on the impact of anterior load carriage on fall risk during different locomotion.
    MeSH term(s) Biomechanical Phenomena ; Exercise Test ; Gait ; Humans ; Walking ; Young Adult
    Language English
    Publishing date 2022-02-25
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial
    ZDB-ID 1162323-8
    ISSN 1879-2219 ; 0966-6362
    ISSN (online) 1879-2219
    ISSN 0966-6362
    DOI 10.1016/j.gaitpost.2022.02.027
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  9. Article: Experiences of peer support activities and the need for a metaverse-based program in young women with breast cancer: A qualitative study.

    Ahn, Jeonghee / Lee, Kyoung-Eun

    Asia-Pacific journal of oncology nursing

    2023  Volume 10, Issue 7, Page(s) 100253

    Abstract: Objective: This study aimed to explore young breast cancer survivors' experiences of peer support ... analysis study involved 15 young women with breast cancer under the age of 40. Participants with diverse ... Conclusions: This study highlights the unique needs and preferences of young breast cancer survivors ...

    Abstract Objective: This study aimed to explore young breast cancer survivors' experiences of peer support activities and their need for a metaverse-based peer support program.
    Methods: This qualitative content analysis study involved 15 young women with breast cancer under the age of 40. Participants with diverse experiences in peer support activities were purposefully selected. Data were collected in March 2023 through three focus group interviews and three additional individual interviews. Saturation was reached when no new themes emerged from the interviews. The interviews were transcribed verbatim and analyzed using conventional content analysis. This study ensured the trustworthiness of the data based on criteria including truth value, applicability, consistency, and neutrality.
    Results: Four categories emerged: advantages, disadvantages, preferences for peer support activities, and the need for metaverse-based peer support programs. Participants valued peer support activities for exchanging information, nurturing empathy, and encouraging healthy behaviors. Challenges included information confusion, peer conflict, isolation, and stigma. Preferences for group composition, size, and medium varied; however, all participants agreed on the importance of operational guidelines. Participants expected a metaverse-based peer support program to provide safe and enjoyable experiences despite concerns about unfamiliar platforms.
    Conclusions: This study highlights the unique needs and preferences of young breast cancer survivors regarding peer support activities. Well-organized and tailored peer support can significantly enhance their quality of life. These findings provide valuable insights for developing effective metaverse-based peer support programs to meet the needs of young women with breast cancer.
    Language English
    Publishing date 2023-05-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2984639-0
    ISSN 2349-6673 ; 2347-5625
    ISSN (online) 2349-6673
    ISSN 2347-5625
    DOI 10.1016/j.apjon.2023.100253
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  10. Article: Agreement between Fitbit and ActiGraph Estimates of Physical Activity in Young Children.

    Schmidt, Michael D / Rathbun, Stephen L / Chu, Zhixuan / Boudreaux, Benjamin D / Hahn, Lindsay / Novotny, Eric / Johnsen, Kyle / Ahn, Sun Joo Grace

    Measurement in physical education and exercise science

    2022  Volume 27, Issue 2, Page(s) 171–180

    Abstract: Physical activity (PA) estimates from the Fitbit Flex 2 were compared to those from the ActiGraph GT9X Link in 123 elementary school children. Steps and intensity-specific estimates of PA and 3-month PA change were calculated using two different ... ...

    Abstract Physical activity (PA) estimates from the Fitbit Flex 2 were compared to those from the ActiGraph GT9X Link in 123 elementary school children. Steps and intensity-specific estimates of PA and 3-month PA change were calculated using two different ActiGraph cut-points (Evenson and Romanzini). Fitbit estimates were 35% higher for steps compared to the ActiGraph. Fitbit and ActiGraph intensity-specific estimates were closest for sedentary and light PA while estimates of moderate and vigorous PA varied substantially depending upon the ActiGraph cut-points used. Spearman correlations between device estimates were higher for steps (
    Language English
    Publishing date 2022-09-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2019576-X
    ISSN 1532-7841 ; 1091-367X
    ISSN (online) 1532-7841
    ISSN 1091-367X
    DOI 10.1080/1091367x.2022.2125319
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