Li Yi1, Yan Xu1, Sandrah P Eckel2, Sydney O'Connor2, Jane Cabison2, Marisela Rosales2, Daniel Chu2, Thomas A Chavez2, Mark Johnson2, Tyler B Mason2, Theresa M Bastain2, Carrie V Breton2, Genevieve F Dunton3, John P Wilson4, Rima Habre5. 1. Spatial Sciences Institute, University of Southern California, United States. 2. Department of Population and Public Health Sciences, University of Southern California, United States. 3. Department of Population and Public Health Sciences, University of Southern California, United States; Department of Psychology, University of Southern California, United States. 4. Spatial Sciences Institute, University of Southern California, United States; Department of Population and Public Health Sciences, University of Southern California, United States; Departments of Civil & Environmental Engineering, Computer Science and Sociology, University of Southern California, United States. 5. Spatial Sciences Institute, University of Southern California, United States; Department of Population and Public Health Sciences, University of Southern California, United States. Electronic address: habre@usc.edu.
Abstract
INTRODUCTION: Pregnant women's daily time-activity and mobility patterns determine their environmental exposures and subsequently related health effects. Most studies ignore these and assess pregnancy exposures using static residential measures. METHODS: We conducted 4-day continuous geo-location monitoring in 62 pregnant Hispanic women, during pregnancy and early post-partum then derived trips by mode and stays, classified by context (indoor/outdoor, type). Generalized mixed-effect models were used to examine whether these patterns changed over time. RESULTS: Women spent on average 17.3 h/day at home. Commercial and service locations were the most popular non-home destinations, while parks and open spaces were seldom visited. Women made 3.5 daily trips (63.7 min/day and approximately 25% were pedestrian-based). Women were less likely to visit commercial and services locations and make vehicle-based trips postpartum compared to the 3rd trimester. CONCLUSION: Our findings suggest time-activity patterns vary across pregnancy and postpartum, thus assessing exposures at stationary locations might introduce measurement error.
INTRODUCTION: Pregnant women's daily time-activity and mobility patterns determine their environmental exposures and subsequently related health effects. Most studies ignore these and assess pregnancy exposures using static residential measures. METHODS: We conducted 4-day continuous geo-location monitoring in 62 pregnant Hispanic women, during pregnancy and early post-partum then derived trips by mode and stays, classified by context (indoor/outdoor, type). Generalized mixed-effect models were used to examine whether these patterns changed over time. RESULTS: Women spent on average 17.3 h/day at home. Commercial and service locations were the most popular non-home destinations, while parks and open spaces were seldom visited. Women made 3.5 daily trips (63.7 min/day and approximately 25% were pedestrian-based). Women were less likely to visit commercial and services locations and make vehicle-based trips postpartum compared to the 3rd trimester. CONCLUSION: Our findings suggest time-activity patterns vary across pregnancy and postpartum, thus assessing exposures at stationary locations might introduce measurement error.
Authors: Kimberly Hannam; Roseanne McNamee; Frank De Vocht; Philip Baker; Colin Sibley; Raymond Agius Journal: Environ Sci Process Impacts Date: 2013-08 Impact factor: 4.238
Authors: Li Yi; John P Wilson; Tyler B Mason; Rima Habre; Shirlene Wang; Genevieve F Dunton Journal: Health Place Date: 2019-11-29 Impact factor: 4.078
Authors: Sandie Ha; Carrie Nobles; Jenna Kanner; Seth Sherman; Seung-Hyun Cho; Neil Perkins; Andrew Williams; William Grobman; Joseph Biggio; Akila Subramaniam; Marion Ouidir; Zhen Chen; Pauline Mendola Journal: Int J Environ Res Public Health Date: 2020-07-07 Impact factor: 3.390
Authors: Sydney G O'Connor; Rima Habre; Theresa M Bastain; Claudia M Toledo-Corral; Frank D Gilliland; Sandrah P Eckel; Jane Cabison; Christine H Naya; Shohreh F Farzan; Daniel Chu; Thomas A Chavez; Carrie V Breton; Genevieve F Dunton Journal: BMC Public Health Date: 2019-02-28 Impact factor: 3.295
Authors: R R C McEachan; S L Prady; G Smith; L Fairley; B Cabieses; C Gidlow; J Wright; P Dadvand; D van Gent; M J Nieuwenhuijsen Journal: J Epidemiol Community Health Date: 2015-11-11 Impact factor: 3.710