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Maximova K, McGrath JJ, Barnett T, O'Loughlin J, Paradis G, Lambert M. Do you see what I see? Weight status misperception and exposure to obesity among children and adolescents. Int J Obes (Lond) 2008; 32:1008-15. [PMID: 18317474 DOI: 10.1038/ijo.2008.15] [Citation(s) in RCA: 165] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Obesity prevention in childhood is important. However, changing children's lifestyle behaviors to reduce overweight is a substantial challenge. Accurately perceiving oneself as overweight/obese has been linked to greater motivation to change lifestyle behaviors. Children and adolescents may be less likely to perceive themselves as overweight/obese if they are exposed to overweight/obese people in their immediate environments. This study examined whether youth who are exposed to overweight parents and schoolmates were more likely to misperceive their own weight status. DESIGN The Quebec Child and Adolescent Health and Social Survey was a provincially representative, school-based survey of children and adolescents conducted between January and May 1999. SUBJECTS 3665 children and adolescents (age 9, n=1267; age 13, n=1186; age 16, n=1212) from 178 schools. Mean body mass index (BMI) was 17.5, 20.6 and 22.2 kg/m(2), respectively. MEASUREMENTS The misperception score was calculated as the standardized difference between self-perception of weight status (Stunkard Body Rating Scale) and actual BMI (from measured height and weight). Exposure to obesity was based on parent and schoolmate BMI. RESULTS Overweight and obese youth were significantly more likely to misperceive their weight compared with non-overweight youth (P<0.001). Multilevel modeling indicated that greater parent and schoolmate BMI were significantly associated with greater misperception (underestimation) of weight status among children and adolescents. CONCLUSION Children and adolescents who live in environments in which people they see on a daily basis, such as parents and schoolmates, are overweight/obese may develop inaccurate perceptions of what constitutes appropriate weight status. Targeting misperception may facilitate the adoption of healthy lifestyle behaviors and improve the effectiveness of obesity prevention interventions.
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Research Support, Non-U.S. Gov't |
17 |
165 |
2
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Hay J, Maximova K, Durksen A, Carson V, Rinaldi RL, Torrance B, Ball GDC, Majumdar SR, Plotnikoff RC, Veugelers P, Boulé NG, Wozny P, McCargar L, Downs S, Lewanczuk R, McGavock J. Physical Activity Intensity and Cardiometabolic Risk in Youth. ACTA ACUST UNITED AC 2012; 166:1022-9. [PMID: 22965682 DOI: 10.1001/archpediatrics.2012.1028] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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13 |
84 |
3
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Lambert M, Van Hulst A, O'Loughlin J, Tremblay A, Barnett TA, Charron H, Drapeau V, Dubois J, Gray-Donald K, Henderson M, Lagacé G, Low NC, Mark S, Mathieu MÈ, Maximova K, McGrath JJ, Nicolau B, Pelletier C, Poirier P, Sabiston C, Paradis G. Cohort profile: the Quebec adipose and lifestyle investigation in youth cohort. Int J Epidemiol 2011; 41:1533-44. [PMID: 21785124 DOI: 10.1093/ije/dyr111] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Research Support, Non-U.S. Gov't |
14 |
76 |
4
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Pauly RP, Maximova K, Coppens J, Asad RA, Pierratos A, Komenda P, Copland M, Nesrallah GE, Levin A, Chery A, Chan CT. Patient and technique survival among a Canadian multicenter nocturnal home hemodialysis cohort. Clin J Am Soc Nephrol 2010; 5:1815-20. [PMID: 20671218 DOI: 10.2215/cjn.00300110] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES As a result of improved clinical and quality-of-life outcomes compared with conventional hemodialysis, interest in nocturnal home hemodialysis (NHD) has steadily increased in the past decade; however, little is known about the flow of patients through NHD programs or about patient-specific predictors of mortality or technique failure associated with this modality. This study addressed this gap in knowledge. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This study included 247 NHD patients of the Canadian Slow Long nightly ExtEnded dialysis Programs (CAN-SLEEP) cohort from 1994 through 2006 inclusive. The association between program- and patient-specific variables and risk for adverse outcomes was determined using uni- and multivariable Cox regression. RESULTS A total of 14.6% of the cohort experienced death or technique failure. Unadjusted 1- and 5-year adverse event-free survival was 95.2 and 80.1%, respectively. Significant predictors of a composite of mortality and technique failure included advanced age (P < 0.001), diabetes (P < 0.001), central venous catheter use (P = 0.01), and inability to perform NHD independently (P = 0.009) and were adjusted for center effect. Weekly frequency of NHD was not predictive. Age and diabetes remained significant with multivariable analysis (hazard ratio 1.07 and 2.64, respectively). Unadjusted 1- and 5-year technique survival was 97.9 and 95.2%, respectively. Only age was a significant predictor of technique failure. CONCLUSIONS NHD is associated with excellent adverse event-free survival. This study underscores the importance of modality-specific predictors in the success of home hemodialysis, as well as favorable baseline characteristics such as younger age and the absence of diabetes.
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Multicenter Study |
15 |
72 |
5
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O'Loughlin J, Dugas EN, Brunet J, DiFranza J, Engert JC, Gervais A, Gray-Donald K, Karp I, Low NC, Sabiston C, Sylvestre MP, Tyndale RF, Auger N, Auger N, Mathieu B, Tracie B, Chaiton M, Chenoweth MJ, Constantin E, Contreras G, Kakinami L, Labbe A, Maximova K, McMillan E, O'Loughlin EK, Pabayo R, Roy-Gagnon MH, Tremblay M, Wellman RJ, Hulst A, Paradis G. Cohort Profile: The Nicotine Dependence in Teens (NDIT) Study. Int J Epidemiol 2014; 44:1537-46. [PMID: 25022274 DOI: 10.1093/ije/dyu135] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2014] [Indexed: 11/14/2022] Open
Abstract
The Nicotine Dependence in Teens (NDIT) study is a prospective cohort investigation of 1294 students recruited in 1999-2000 from all grade 7 classes in a convenience sample of 10 high schools in Montreal, Canada. Its primary objectives were to study the natural course and determinants of cigarette smoking and nicotine dependence in novice smokers. The main source of data was self-report questionnaires administered in class at school every 3 months from grade 7 to grade 11 (1999-2005), for a total of 20 survey cycles during high school education. Questionnaires were also completed after graduation from high school in 2007-08 and 2011-12 (survey cycles 21 and 22, respectively) when participants were aged 20 and 24 years on average, respectively. In addition to its primary objectives, NDIT has embedded studies on obesity, blood pressure, physical activity, team sports, sedentary behaviour, diet, genetics, alcohol use, use of illicit drugs, second-hand smoke, gambling, sleep and mental health. Results to date are described in 58 publications, 20 manuscripts in preparation, 13 MSc and PhD theses and 111 conference presentations. Access to NDIT data is open to university-appointed or affiliated investigators and to masters, doctoral and postdoctoral students, through their primary supervisor (www.nditstudy.ca).
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Research Support, Non-U.S. Gov't |
11 |
56 |
6
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Farahbakhsh J, Hanbazaza M, Ball GDC, Farmer AP, Maximova K, Willows ND. Food insecure student clients of a university-based food bank have compromised health, dietary intake and academic quality. Nutr Diet 2016; 74:67-73. [PMID: 28731560 DOI: 10.1111/1747-0080.12307] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 05/20/2016] [Accepted: 06/13/2016] [Indexed: 11/26/2022]
Abstract
AIM University and college students in wealthy countries may be vulnerable to financial food insecurity. If food insecure students have suboptimal health, their ability to learn and excel in their education could be compromised. This Canadian study examined the relationship of food security status to diet and self-perceived health and academic quality among students receiving emergency food hampers from the Campus Food Bank at University of Alberta. METHODS A convenience sample of 58 students completed a survey. RESULTS Of participating students, 10.3% were food secure, 44.8% were moderately food insecure and 44.8% were severely food insecure. Overall, 32.8% rated their general health as fair/poor, 27.6% rated their mental health as fair/poor and 60.3% indicated at least one adverse academic outcome of not having enough money for food. Compared to other participating students, students with severe food insecurity had a greater likelihood of fair/poor general health (odds ratios (OR) 4.03, 95% confidence intervals (CI) 1.10-14.78); fair/poor mental health (OR 4.96, 95% CI 1.28-19.19); being unable to concentrate in class or during an exam (73.1% vs 40.6%, χ2 = 6.12, P = 0.013); relying on food hampers (34.6% vs 9.7%, χ2 = 5.57, P = 0.018); and, consuming fewer daily fruits, vegetables and legumes (2.12 vs 2.97 cup equivalents, P = 0.009). CONCLUSIONS Food insecurity compromises students' health, diet and academic quality. Campus food banks are not the solution to student hunger. Governmental and university-based programmes and policies are needed to improve the food security situation of university students.
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Journal Article |
9 |
53 |
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Loewen OK, Maximova K, Ekwaru JP, Faught EL, Asbridge M, Ohinmaa A, Veugelers PJ. Lifestyle Behavior and Mental Health in Early Adolescence. Pediatrics 2019; 143:peds.2018-3307. [PMID: 31004047 DOI: 10.1542/peds.2018-3307] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/19/2019] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Mental illnesses affect >15% of Canadian adolescents. New preventive strategies are critically needed. We examined the associations of meeting established recommendations for diet, physical activity, sleep, and sedentary behavior in childhood with mental illness in adolescence. METHODS Population-based prospective study (n = 3436) linking 2011 health behavior survey data of 10- to 11-year-olds with administrative health data from 2011 to 2014. Lifestyle behaviors were measured with the Harvard Food Frequency Questionnaire and self- and parental-proxy reports, expressed as meeting recommendations for vegetables and fruit, grain products, milk and alternatives, meat and alternatives, added sugar, saturated fat, sleep, screen time, and physical activity. Mental illness was defined by physician-diagnosed internalizing, externalizing, and other psychiatric conditions. Negative binomial regression was used to determine the independent and cumulative associations of meeting lifestyle recommendations with physician visits for mental illnesses. RESULTS Of all participants, 12%, 67%, and 21% met 1 to 3, 4 to 6, and 7 to 9 recommendations, respectively, and 15% had a mental illness diagnosis during follow-up. Compared with meeting 1 to 3 recommendations, meeting 7 to 9 recommendations was associated with 56% (95% confidence interval: 38%-69%) fewer physician visits for mental illness during follow-up. Every additional recommendation met was associated with 15% fewer physician visits for mental illnesses (95% confidence interval: 9%-21%). CONCLUSIONS Mental illness in adolescence is associated with compliance to lifestyle recommendations in childhood, with stronger associations seen when more recommendations are met. Emphasizing lifestyle recommendations in pediatric practice may reduce the future burden of mental illness.
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6 |
52 |
8
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Jessri M, Farmer AP, Maximova K, Willows ND, Bell RC. Predictors of exclusive breastfeeding: observations from the Alberta pregnancy outcomes and nutrition (APrON) study. BMC Pediatr 2013; 13:77. [PMID: 23679578 PMCID: PMC3660294 DOI: 10.1186/1471-2431-13-77] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 05/09/2013] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Despite growing evidence that supports the importance of 6-month exclusive breastfeeding, few Canadian mothers adhere to this, and early weaning onto solids is a common practice. This study assessed infant feeding transitions during the first 6 months postpartum and factors that predicted exclusive breastfeeding to 3 and 6 months. METHODS This prospective cohort study was part of the Alberta Pregnancy Outcomes and Nutrition study (APrON). From an initial sample of 600 pregnant women recruited from Edmonton and Calgary, 402 mothers provided complete details at 3 months postpartum; 300 stayed on to provide information at 6 months postpartum. During pregnancy and at 3 and 6 months postpartum, data on maternal and infant socio-demographic, behavior, and feeding were collected. RESULTS Even though there was a high rate of "ever having breastfed" (98.6%), exclusive breastfeeding rates for 3 and 6 months were 54.0% and 15.3%, respectively. After controlling for potential confounders, the study showed that mothers who held post-graduate university degrees were 3.76 times more likely to breastfeed exclusively for 6 months than those without a university degree (95% CI: 1.30-10.92; p = 0.015). In addition, mother of previous children were more likely to breastfeed exclusively for 6 months (OR: 2.21, 95% CI: 1.08-4.52; p = 0.031). Mothers who were in the highest quartile of the Iowa Infant Feeding Attitude Score were 4.29 and 5.40 times more likely to breastfeed exclusively for 3 months (95% CI: 1.31-14.08; p-trend < 0.001) and 6 months (95% CI: 2.75-10.60; P-trend < 0.001), respectively. CONCLUSIONS The 6-month exclusive breastfeeding rate in Alberta is considerably below national and international breastfeeding recommendations. Professional advice that focuses on prenatal maternal knowledge, attitudes, and misperceptions may promote adherence to World Health Organization breastfeeding guidelines. Knowing that exclusive breastfeeding is less likely to take place among lower-educated, primiparous women may help health practitioners focus their support and education for this group.
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research-article |
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42 |
9
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Vander Ploeg KA, McGavock J, Maximova K, Veugelers PJ. School-based health promotion and physical activity during and after school hours. Pediatrics 2014; 133:e371-8. [PMID: 24420806 DOI: 10.1542/peds.2013-2383] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Comprehensive school health (CSH) is a multifaceted approach to health promotion. A key objective of CSH is to foster positive health behaviors outside of school. This study examined the 2-year change in physical activity during and after school among students participating in a CSH intervention in Edmonton, Alberta, Canada. METHODS This was a quasi-experimental, pre-post trial with a parallel, nonequivalent control group. Intervention schools had to be located in socioeconomically disadvantaged neighborhoods. In the spring of 2009 and 2011, pedometer recordings (7 full days) and demographic data were collected from cross-sectional samples of fifth grade students from 10 intervention schools and 20 comparison schools. A total of 1157 students participated in the study. Analyses were adjusted for potential confounders and the clustered design. RESULTS Relative to 2009, children in 2011 were more active on schools days (1172 steps per day; P < .001) and on weekends (1450 steps per day; P < .001). However, the increase in mean steps between 2009 and 2011 was greater in CSH intervention schools than in comparison schools (school days: 1221 steps per day; P = .009; weekends: 2001 steps per day; P = .005). These increases remained significant after adjusting for gender and overweight status. CONCLUSIONS These findings provide evidence of the effectiveness of CSH to affect children's physical activity during and outside of school. Results of this study justify broader implementation of effective CSH interventions for physical activity promotion and obesity prevention in the long term.
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Clinical Trial |
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39 |
10
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Solomon-Krakus S, Sabiston CM, Brunet J, Castonguay AL, Maximova K, Henderson M. Body Image Self-Discrepancy and Depressive Symptoms Among Early Adolescents. J Adolesc Health 2017; 60:38-43. [PMID: 27793726 DOI: 10.1016/j.jadohealth.2016.08.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 10/20/2022]
Abstract
PURPOSE This study examined whether body image self-discrepancy was a correlate of depressive symptoms among 556 early adolescents (45% girls; Mage = 11.65, SD = .94 years). METHODS Participants completed self-report measures of their self-perceived actual and ideal body shapes and depressive symptoms. Sex-stratified polynomial regressions were used to examine the associations between depressive symptoms and (1) agreement (i.e., similar actual and ideal body shapes); (2) discrepancy (i.e., different actual and ideal body shapes); (3) direction of discrepancy (i.e., actual > ideal or actual < ideal); and (4) degree of discrepancy (i.e., how different actual and ideal body self-perceptions are). RESULTS For both sexes, depressive symptoms were more frequent when the direction of the discrepancy was such that participants perceived their actual body was larger than their ideal body. Furthermore, depressive symptoms were more frequent when the degree of the discrepancy between actual and ideal body shape perceptions was larger. CONCLUSIONS Based on these findings, body image self-discrepancy may be a risk factor for depressive symptoms among early adolescents.
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36 |
11
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Maximova K, O'Loughlin J, Paradis G, Hanley JA, Lynch J. Declines in physical activity and higher systolic blood pressure in adolescence. Am J Epidemiol 2009; 170:1084-94. [PMID: 19778982 DOI: 10.1093/aje/kwp255] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The authors examined the potential association between changes in the number of moderate-to-vigorous physical activity (MVPA) sessions per week, adiposity, and systolic blood pressure (SBP) during adolescence. SBP and anthropometric factors were assessed biannually (1999/2000, 2002, and 2004) in a cohort of 1,293 Canadian adolescents aged 12-13 years in 1999. Self-reported 7-day recall data on MVPA sessions >or=5 minutes in duration were collected every 3 months over the 5-year period. Estimates of initial level and rate of decline in number of MVPA sessions per week from individual growth models were used as predictors of SBP in linear regression models. A decline of 1 MVPA session per week with each year of age was associated with 0.29-mm Hg and 0.19-mm Hg higher SBPs in girls and boys, respectively, in early adolescence (ages 12.8-15.1 years) and 0.40-mm Hg and 0.18-mm Hg higher SBPs, respectively, in late adolescence (ages 15.2-17.0 years). The associations were not attenuated by changes in body mass index, waist circumference, or skinfold thickness in girls during late adolescence. Although weaker, associations were evident in boys during late adolescence, as well as in both girls and boys during early adolescence. These results support prevention of declines in MVPA during adolescence to prevent higher blood pressure in youth.
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33 |
12
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Triador L, Farmer A, Maximova K, Willows N, Kootenay J. A school gardening and healthy snack program increased Aboriginal First Nations children's preferences toward vegetables and fruit. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2015; 47:176-180. [PMID: 25439764 DOI: 10.1016/j.jneb.2014.09.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 08/28/2014] [Accepted: 09/08/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The researchers evaluated the impact of a 7-month gardening and 4-month vegetable and fruit snack program on Aboriginal First Nations children's home consumption and preferences toward vegetables and fruit. METHODS The intervention was based on the Social Cognitive Theory. Children in grades 1-6 planted and tended classroom container gardens and prepared and ate what grew. At baseline and 7 months later, children tasted and rated 17 vegetables and fruit using a Likert scale and indicated whether they ate each food at home. RESULTS Data were collected from 76 of 116 children (65.5%). Preference scores for vegetables, fruit, and vegetables and fruit combined increased over the 7 months (P < .017). Self-reported home consumption did not change. CONCLUSIONS AND IMPLICATIONS School interventions have the potential to increase children's preferences for vegetables and fruit. Family participation is likely required, along with increased community availability of produce, to promote home consumption.
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10 |
32 |
13
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Jirsch JD, Ahmed SN, Maximova K, Gross DW. Recognition of psychogenic nonepileptic seizures diminishes acute care utilization. Epilepsy Behav 2011; 22:304-7. [PMID: 21813334 DOI: 10.1016/j.yebeh.2011.06.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 05/20/2011] [Accepted: 06/23/2011] [Indexed: 10/17/2022]
Abstract
Patients with psychogenic nonepileptic seizures (PNES) frequently use acute health care resources including emergency departments (EDs), resulting in redundant efforts. We asked whether establishing the diagnosis of PNES via video/EEG telemetry reduces subsequent ED use. Twenty-three patients with PNES were studied over a 48-month period surrounding the diagnosis using a provincewide database. There was a 39% reduction in total ED visits and a 51% reduction in ED visits for neurological causes during the 24 months following the diagnosis, and decreased ED use persisted throughout the follow-up period. There was no significant change in ED utilization for psychiatric causes. The proportion of patients with PNES who used ED services once or not at all per year increased from 26% in the 2 years prior to the diagnosis to 57% following the diagnosis. These findings suggest that a definitive, telemetry-based diagnosis relieves diagnostic uncertainties for the patient and physician, but also has quantifiable economic benefits.
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30 |
14
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Vander Ploeg KA, Kuhle S, Maximova K, McGavock J, Wu B, Veugelers PJ. The importance of parental beliefs and support for pedometer-measured physical activity on school days and weekend days among Canadian children. BMC Public Health 2013; 13:1132. [PMID: 24308428 PMCID: PMC4234294 DOI: 10.1186/1471-2458-13-1132] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 11/27/2013] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Parental influences are essential to the behaviours and physical activity of their children. Our study aimed to determine if parental beliefs and support are associated with children's pedometer measured physical activity levels on school days and weekend days. METHODS In the spring of 2009 and 2011, we analyzed cross-sectional data from 1,355 grade five students and parents in 30 schools in Alberta, Canada. Parents reported how much they care about exercising, how much they encourage their child to be physically active, and how frequently they engage in physical activities with their child. Physical activity was assessed from step counts obtained from time-stamped pedometers collected over nine consecutive days. RESULTS Increased parental encouragement was positively associated with boys' and girls' physical activity on school days (Boys: beta = 1373, 95% CI: 606, 2139; Girls: beta = 632, 95% CI: 108, 1155) and girls' physical activity on weekend days (beta = 997, 95% CI: 130, 1864). Increased parental care was positively associated with boys' physical activity on weekend days (beta = 1381, 95% CI: 85, 2676). Increased parental support and engagement was associated with an additional 632-1381 steps/day for children in this study. CONCLUSIONS Parental care, encouragement and engagement are associated with physical activity levels of children 10-11 years of age. Policy makers and researchers should consider the importance of targeting parents when designing strategies to promote physical activity in children. This is particularly relevant to weekends and holidays when children's activity levels are low.
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research-article |
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27 |
15
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Maximova K, Quesnel-Vallée A. Mental health consequences of unintended childlessness and unplanned births: gender differences and life course dynamics. Soc Sci Med 2008; 68:850-7. [PMID: 19097676 DOI: 10.1016/j.socscimed.2008.11.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Indexed: 10/21/2022]
Abstract
The discordance between fertility intentions and outcomes may be associated with mental health in the general population. This requires data directly linking individuals' fertility intentions with their outcomes. This study brings together two streams of research on fertility and psychological distress to examine whether unintended childlessness and unplanned births are associated with psychological distress, compared with intended childlessness and planned births. We also examine whether unintended childlessness and unplanned births are differently associated with distress at two stages of the individuals' life course: in early and late 30s. As women are more directly affected by the decline in fertility with age and the experience of motherhood is more central to women's identity, we also examined gender differences in these associations. Thus, we examined the association between four possible fertility events (planned and unplanned births, intended and unintended childlessness) and psychological distress of men and women, at two different stages over the life course (early and late 30s). We used longitudinal data from the US National Longitudinal Study of Youth 1979 (N=2524) to link individuals' fertility intentions and outcomes to evaluate the association of depressive symptoms (CES-D) with four possible fertility events occurring in two-year intervals, for men and women separately. Contrary to our first hypothesis, unintended childlessness and unplanned births were not associated with psychological distress for women. Among men, only unplanned births in their early 30s were associated with increases in psychological distress. We did not find support for our second hypothesis that unintended childlessness and unplanned births have a different association with psychological distress for men and women and as a function of the stage of life. These findings are discussed in the context of previous literature in this area.
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Research Support, Non-U.S. Gov't |
17 |
27 |
16
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Hanbazaza MA, Triador L, Ball GDC, Farmer A, Maximova K, Alexander First Nation, Willows ND. The Impact of School Gardening on Cree Children's Knowledge and Attitudes toward Vegetables and Fruit. CAN J DIET PRACT RES 2015; 76:133-9. [PMID: 26280793 DOI: 10.3148/cjdpr-2015-007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
PURPOSE School-based interventions may increase children's preferences for vegetables and fruit (V&F). This Canadian study measured changes in Indigenous First Nations schoolchildren's V&F knowledge, preferences, and home consumption following the implementation of a gardening and V&F snack program. METHODS At baseline, 7 months, and 18 months, children in grades 1-6 (i) listed at least 5 V&F they knew, (ii) tasted and indicated their preferences towards 9 vegetables and 8 fruit using a 6-point Likert scale, and (iii) indicated their home consumption of 17 V&F. RESULTS At all 3 time points, 56.8% (n = 66/116) of children provided data. Children listed a greater number of V&F at 18 months (4.9 ± 0.1) than at baseline (4.5 ± 1.0) or 7 months (4.7 ± .07) (F(1.6,105.6) = 6.225, P < 0.05). Vegetable preferences became more positive between baseline (37.9 ± 9.3) and 7 months (39.9 ± 9.2), but returned to baseline levels at 18 months (37.3 ± 8.7) (F(1.6,105.8) = 4.581, P < 0.05). Fruit preferences at 18 months (42.7 ± 3.0) were greater than at baseline (41.1 ± 4.3) and at 7 months (41.9 ± 5.1) (F(1.7,113.3) = 3.409, P < 0.05). No change in V&F consumption occurred at home. CONCLUSIONS Despite improvements in V&F knowledge and preferences, home consumption of V&F did not occur. Complementing school-based programs with home-based components may be needed to influence V&F intake of children.
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Research Support, Non-U.S. Gov't |
10 |
26 |
17
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Bélanger M, Gray-Donald K, O'Loughlin J, Paradis G, Hutcheon J, Maximova K, Hanley J. Participation in organised sports does not slow declines in physical activity during adolescence. Int J Behav Nutr Phys Act 2009; 6:22. [PMID: 19335892 PMCID: PMC2670258 DOI: 10.1186/1479-5868-6-22] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Accepted: 03/31/2009] [Indexed: 11/16/2022] Open
Abstract
Background Among youth, participation in extracurricular physical activities at school and organised physical activities in the community is associated with higher physical activity levels. The objective was to determine if participation in organised physical activities during early adolescence protects against declines in physical activity levels during adolescence. Methods Every 3 months for 5 years, students initially in grade 7 (aged 12–13 years) completed a 7-day physical activity recall and provided data on the number and type of (extracurricular) physical activities organised at school and in the community in which they took part. To study rates of decline in physical activity, only adolescents who reported an average of ≥5 moderate-vigorous physical activity sessions per week in grade 7 (n = 1028) were retained for analyses. They were categorised as to whether or not they were involved in organised physical activities in grade 7. We used generalized estimating equation Poisson regression to compare the rate of decline in number of moderate-vigorous physical activity sessions per week during adolescence between initially physically active students who participated in organised physical activity in grade 7 and those who did not. Results In grade 7, about 87% of physically active adolescents reported taking part in at least one organised physical activity. Compared to active adolescents not involved in organised physical activities, baseline involvement in physical activity was 42% (95% CI 26–59%) higher among those involved in organised physical activity (mean number of moderate-vigorous physical activity sessions per week = 14.6 ± 13.1 vs 10.4 ± 9.0). Physical activity declined by 8% per year in both groups. Results were similar in analyses that examined the effect of school or community-based physical activities separately. Conclusion Although participation in organised physical activities during early adolescence is associated with more physical activity throughout secondary school, participation in such activities does not protect against declines in physical activity over time.
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Journal Article |
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Maximova K, Krahn H. Health status of refugees settled in Alberta: changes since arrival. Canadian Journal of Public Health 2010. [PMID: 21033547 DOI: 10.1007/bf03405295] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This paper sought to examine which pre- and post-migration factors might be associated with changes in refugees' health status. METHODS Using linear regression, the associations between pre- and post-migration factors and changes in self-rated mental and physical health status were examined in 525 refugees from the 1998 Settlement Experiences of Refugees in Alberta study. RESULTS Having spent time in a refugee camp and having held professional/managerial jobs in one's home country were associated with a greater decline in mental health status since arrival in Canada. Having completed a university degree in one's home country was associated with a greater decline in physical health status. Being employed was associated with greater improvements in mental health status. Perceived economic hardship was associated with greater declines in physical health status. A higher number of settlement services received during the first year in Canada was associated with greater improvements in both mental and physical health status. Longer residence in Canada was associated with greater declines in physical health status but not in mental health status. CONCLUSION While little can be done to alter refugees' pre-migration experiences, public policies can affect many post-migration experiences in order to mitigate the negative health consequences associated with resettlement. Results of this study point to the need for continued provision of settlement services to assist refugees with job training, labour market access, and credential recognition, as well as counseling for refugees who experienced the trauma of living in a refugee camp.
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Research Support, Non-U.S. Gov't |
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Farahbakhsh J, Ball GDC, Farmer AP, Maximova K, Hanbazaza M, Willows ND. How do Student Clients of a University-based Food Bank Cope with Food Insecurity? CAN J DIET PRACT RES 2015; 76:200-3. [PMID: 26280467 DOI: 10.3148/cjdpr-2015-020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
PURPOSE To describe the food security status, food insecurity coping strategies, characteristics, and experiences of student clients of the Campus Food Bank (CFB) at the University of Alberta in Edmonton, Alberta, Canada. METHODS A convenience sample of 58 students completed a survey from April 2013 to April 2014. Food security status was determined using the "Adult Food Security Survey Module". RESULTS Ninety percent of CFB student clients who participated in this study were food insecure, which included both moderately and severely food insecure groups. The most prevalent coping strategies for food insecurity included applying for a loan or bursary (86.2%), seeking employment or working more hours (84.5%), and purchasing food using a credit card (77.6%). Participants were a diverse mix of students, including graduate students (50.0%), international students (46.6%), and caregivers of children (24.1%). The most common primary sources of income were government student loans (29.3%) and research assistantships (20.7%). Most participants (82.8%) liked the food they received from the food bank. CONCLUSIONS Food insecurity is highly prevalent among student clients of this university-based food bank. Students used a variety of coping strategies to increase their disposable income, highlighting the need for additional strategies to alleviate food insecurity among vulnerable students.
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Research Support, Non-U.S. Gov't |
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20
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Chiolero A, Paradis G, Maximova K, Burnier M, Bovet P. No use for waist-for-height ratio in addition to body mass index to identify children with elevated blood pressure. Blood Press 2012; 22:17-20. [DOI: 10.3109/08037051.2012.701376] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Setayeshgar S, Ekwaru JP, Maximova K, Majumdar SR, Storey KE, McGavock J, Veugelers PJ. Dietary intake and prospective changes in cardiometabolic risk factors in children and youth. Appl Physiol Nutr Metab 2017; 42:39-45. [PMID: 27959641 DOI: 10.1139/apnm-2016-0215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2023]
Abstract
Only few studies examined the effect of diet on prospective changes in cardiometabolic (CM) risk factors in children and youth despite its importance for understanding the role of diet early in life for cardiovascular disease in adulthood. To test the hypothesis that dietary intake is associated with prospective changes in CM risk factors, we analyzed longitudinal observations made over a period of 2 years among 448 students (aged 10-17 years) from 14 schools in Canada. We applied mixed effect regression to examine the associations of dietary intake at baseline with changes in body mass index, waist circumference (WC), systolic and diastolic blood pressure (SBP and DBP), and insulin sensitivity score between baseline and follow-up while adjusting for age, sex, and physical activity. Dietary fat at baseline was associated with increases in SBP and DBP z scores (per 10 g increase in dietary fat per day: β = 0.03; p < 0.05) and WC (β = 0.31 cm; p < 0.05) between baseline and follow-up. Every additional gram of sodium intake at baseline was associated with an increase in DBP z score of 0.04 (p < 0.05) between baseline and follow-up. Intake of sugar, vegetables and fruit, and fibre were not associated with changes in CM risk factors in a statistically significant manner. Our findings suggest that a reduction in the consumption of total dietary fat and sodium may contribute to the prevention of excess body weight and hypertension in children and youth, and their cardiometabolic sequelae later in life.
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Multicenter Study |
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Avis JL, Cave AL, Donaldson S, Ellendt C, Holt NL, Jelinski S, Martz P, Maximova K, Padwal R, Wild TC, Ball GD. Working With Parents to Prevent Childhood Obesity: Protocol for a Primary Care-Based eHealth Study. JMIR Res Protoc 2015; 4:e35. [PMID: 25831265 PMCID: PMC4390613 DOI: 10.2196/resprot.4147] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/03/2015] [Accepted: 02/03/2015] [Indexed: 11/13/2022] Open
Abstract
Background Parents play a central role in preventing childhood obesity. There is a need for innovative, scalable, and evidence-based interventions designed to enhance parents’ motivation to support and sustain healthy lifestyle behaviors in their children, which can facilitate obesity prevention. Objective (1) Develop an online screening, brief intervention, and referral to treatment (SBIRT) eHealth tool to enhance parents’ concern for, and motivation to, support children’s healthy lifestyle behaviors, (2) refine the SBIRT eHealth tool by assessing end-user acceptability, satisfaction, and usability through focus groups, and (3) determine feasibility and preliminary effectiveness of the refined SBIRT eHealth tool through a randomized controlled trial. Methods This is a three-phase, multi-method study that includes SBIRT eHealth tool development (Phase I), refinement (Phase II), and testing (Phase III).
Phase I: Theoretical underpinnings of the SBIRT tool, entitled the Resource Information Program for Parents on Lifestyle and Education (RIPPLE), will be informed by concepts applied within existing interventions, and content will be based on literature regarding healthy lifestyle behaviors in children. The SBIRT platform will be developed in partnership between our research team and a third-party intervention development company.
Phase II: Focus groups with parents, as well as health care professionals, researchers, and trainees in pediatrics (n=30), will explore intervention-related perceptions and preferences. Qualitative data from the focus groups will inform refinements to the aesthetics, content, structure, and function of the SBIRT.
Phase III: Parents (n=200) of children—boys and girls, 5 to 17 years old—will be recruited from a primary care pediatric clinic while they await their children’s clinical appointment. Parents will be randomly assigned to one of five groups—four intervention groups and one control group—as they complete the SBIRT. The randomization function is built into the tool. Parents will complete the eHealth SBIRT using a tablet that will be connected to the Internet. Subsequently, parents will be contacted via email at 1-month follow-up to assess (1) change in concern for, and motivation to, support children’s dietary and physical activity behaviors (primary outcome), and (2) use of online resources and referrals to health services for obesity prevention (secondary outcome). Results This research was successfully funded and received ethics approval. Development of the SBIRT started in summer 2012, and we expect all study-related activities to be completed by fall 2016. Conclusions The proposed research is timely and applies a novel, technology-based application designed to enhance parents concern for, and motivation to, support children’s healthy lifestyle behaviors and encourage use of online resources and community services for childhood obesity prevention. Overall, this research builds on a foundation of evidence supporting the application of SBIRTs to encourage or “nudge” individuals to make healthy lifestyle choices. Findings from Phase III of this project will directly inform a cluster randomized controlled trial to study the effectiveness of our intervention across multiple primary care-based settings. Trial Registration ClinicalTrials.gov NCT02330588; http://clinicaltrials.gov/ct2/show/NCT02330588 (Archived by WebCite at http://www.webcitation.org/6WyUOeRlr).
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Journal Article |
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Maximova K, Khan MKA, Dabravolskaj J, Maunula L, Ohinmaa A, Veugelers PJ. Perceived changes in lifestyle behaviours and in mental health and wellbeing of elementary school children during the first COVID-19 lockdown in Canada. Public Health 2022; 202:35-42. [PMID: 34879321 PMCID: PMC8645293 DOI: 10.1016/j.puhe.2021.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 09/21/2021] [Accepted: 10/09/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVES The closure of schools to prevent the spread of COVID-19 prompted concerns of deteriorating lifestyle behaviours, mental health, and wellbeing of children, particularly those in socioeconomically disadvantaged settings. We assessed changes in lifestyle behaviours (physical activity, screen time, eating habits and bed/wake-up times), mental health and wellbeing during the first lockdown in Spring 2020 as perceived by school children from disadvantaged settings, and examined determinants of these changes. STUDY DESIGN Cross-sectional study. METHODS We surveyed 1095 grade 4 to 6 students (age 9-12 years) from 20 schools in socioeconomically disadvantaged communities in northern Canada. Students reported on changes in lifestyle behaviours, mental health and wellbeing during the lockdown. Determinants of these perceived changes were examined in multivariable regression models. RESULTS A majority of students reported declines in physical activity, having late bed/wake-up times, and modest improvements in mental health and wellbeing. Many students reported increases rather than decreases in screen time and snacking. Positive attitudes toward being active, eating healthy, going to sleep on time and being healthy were strongly associated with maintaining healthy lifestyle behaviours during the lockdown. Positive attitudes toward active and healthy living and healthy lifestyle behaviours were associated with maintaining positive mental health and wellbeing during the lockdown. CONCLUSIONS The considerable changes in lifestyle behaviors, superimposed on the pre-existing burden of unhealthy lifestyle behaviours, put this generation of children at increased risk for future chronic disease. Findings call for effective health promotion of active and healthy lifestyles to benefit both physical and mental health.
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research-article |
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Hanbazaza M, Ball GD, Farmer AP, Maximova K, Farahbakhsh J, Willows ND. A Comparison of Characteristics and Food Insecurity Coping Strategies between International and Domestic Postsecondary Students Using a Food Bank Located on a University Campus. CAN J DIET PRACT RES 2017; 78:208-211. [DOI: 10.3148/cjdpr-2017-012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Pabayo R, Maximova K, Spence JC, Vander Ploeg K, Wu B, Veugelers PJ. The importance of Active Transportation to and from school for daily physical activity among children. Prev Med 2012; 55:196-200. [PMID: 22721812 DOI: 10.1016/j.ypmed.2012.06.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 06/10/2012] [Accepted: 06/11/2012] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate if students who use of Active Transportation (AT) to and from school among urban and rural Canadian children are more likely to meet physical activity recommendations. METHODS The Raising healthy Eating and Active Living in Alberta (REAL Kids Alberta) study is a population-based health survey among Grade 5 students. In 2009, physical activity levels were measured using time-stamped pedometers (number of steps/hour) among 688 children. Parents reported mode of transportation to and from school (AT/non-AT). Multilevel multiple linear regression analyses with corresponding β coefficients were conducted to quantify the relationship between mode of transportation to and from school with (1) overall step count, and (2) the likelihood of achieving at least 13,500 steps per day recommended for optimal growth and development. RESULTS Among urban children, those who used AT to and from school accumulated more steps [β=1124(95% CI=170,2077)] and although not significant, were more likely to achieve the recommended 13,500 steps/day compared to those not using AT to and from school [OR=1.61(95% CI=0.93,2.81)]. CONCLUSION Using AT to and from school appears to be beneficial to children by supplementing their physical activity, particularly those living in urban regions. Strategies to promote physical activity are needed, particular for children residing in rural regions and smaller towns.
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