Journal article
Validity of self-reported and objectively measured sedentary behavior in pregnancy
BMC pregnancy and childbirth, Vol.20(1), pp.99-99
02/11/2020
DOI: 10.1186/s12884-020-2771-z
PMCID: PMC7014698
PMID: 32046663
Abstract
Background Sedentary behavior (SED) is a potential risk factor for poor pregnancy outcomes. We evaluated the validity of several common and one new method to assess SED across three trimesters of pregnancy. Methods This cohort study of pregnant women measured objective and self-reported SED each trimester via thigh-worn activPAL3 micro (criterion), waist-worn Actigraph GT3X, and self-report from the Pregnancy Physical Activity Questionnaire (PPAQ) and the de novo Sedentary Behavior Two Domain Questionnaire (SB2D). SED (hours per day) and percent time in SED (SED%) from activPAL were compared to GT3X, SB2D, and PPAQ using Pearson's r, ICC, Bland-Altman analysis, and comparison of criterion SED and SED% across tertiles of alternative methods. Results Fifty-eight women (mean age 31.5 +/- 4.8 years; pre-pregnancy BMI 25.1 +/- 5.6 kg/m(2); 76% white) provided three trimesters of valid activPAL data. Compared to activPAL, GT3X had agreement ranging from r = 0.54-0.66 and ICC = 0.52-0.65. Bland-Altman plots revealed small mean differences and unpatterned errors, but wide limits of agreement (greater than +/- 2 h and +/- 15%). The SB2D and PPAQ had r < 0.5 and ICC < 0.3 vs. activPAL SED, with lower agreement during the 2nd and 3rd trimesters, and performed poorly in Bland-Altman analyses. SED% from the modified SB2D performed best of the self-reported instruments with modest mean differences, r ranging from 0.55 to 0.60, and ICCs from 0.31-0.33; though, limits of agreement were greater than +/- 35%. Significant trends in activPAL SED were observed across increasing tertiles of SB2D SED in the 1st and 3rd trimesters (both p <= 0.001), but not the 2nd trimester (p = 0.425); and for PPAQ SED in the 1st and 2nd trimesters (both p < 0.05), but not the 3rd trimester (p = 0.158). AcitvPAL SED and SED% increased significantly across tertiles of GT3X SED and SED% as well as SB2D SED% (all p-for-trend <= 0.001). Conclusions Compared to activPAL, waist-worn GT3X produced moderate agreement, though similar mean estimates of SED across pregnancy. Self-report questionnaires had large absolute error and wide limits of agreement for SED hr./day; SB2D measurement of SED% was the best self-report method. These data suggest activPAL be used to measure SED when possible, followed by GT3X, and - when necessary - SB2D assessing SED% in pregnancy.
Details
- Title: Subtitle
- Validity of self-reported and objectively measured sedentary behavior in pregnancy
- Creators
- Bethany Barone Gibbs - University of PittsburghJoshua L Paley - University of PittsburghMelissa A Jones - University of PittsburghKara M Whitaker - University of IowaChristopher P Connolly - Washington State UniversityJanet M Catov - University of Pittsburgh
- Resource Type
- Journal article
- Publication Details
- BMC pregnancy and childbirth, Vol.20(1), pp.99-99
- DOI
- 10.1186/s12884-020-2771-z
- PMID
- 32046663
- PMCID
- PMC7014698
- NLM abbreviation
- BMC Pregnancy Childbirth
- ISSN
- 1471-2393
- eISSN
- 1471-2393
- Publisher
- BMC
- Number of pages
- 10
- Grant note
- NIH UL1TR000005 / University of Pittsburgh Clinical and Translational Science Institute 17GRNT3340016 / American Heart Association
- Language
- English
- Date published
- 02/11/2020
- Academic Unit
- Epidemiology; Health, Sport, and Human Physiology
- Record Identifier
- 9984245773002771
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