Park Susan, Marcotte Robert, Staudenmayer John, Sirard John, VanKim Nicole, Pekow Penelope, Strath Scott, Freedson Patty, Chasan-Taber Lisa
Department of Biostatistics & Epidemiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, Massachusetts, United States.
Department of Kinesiology, School of Public Health & Health Sciences, University of Massachusetts, Amherst, Massachusetts, United States.
Am J Epidemiol. 2024 Oct 2. doi: 10.1093/aje/kwae382.
To develop and evaluate the validity of the Pregnancy Physical Activity Questionnaire-Short Form (PPAQ-SF). A prospective cohort of participants (N=50) completed the updated PPAQ (long-form) and wore an ActiGraph for 7 days on the nondominant wrist in early, mid, and late pregnancy. The top ten questions with the highest relative contribution to the between-person variance in PPAQ-assessed total MET-hours/day were selected. Internal validity was evaluated using the ActiGraph and the updated PPAQ (long-form) within the current dataset. Validity was also assessed in an external validation dataset of 222 pregnant participants using the updated and original PPAQ (long-forms). Spearman correlations between the PPAQ-SF and ActiGraph estimates of MVPA MET-hours/day were r = 0.34 (95% CI 0.18-0.48) for overall pregnancy and ranged from 0.21 (95% CI -0.07-0.47) in early pregnancy to 0.49 (95% CI 0.23-0.69) in mid-pregnancy. In the external validation dataset, correlations between the PPAQ-SF and the PPAQ (long forms) estimates of MVPA MET-hours/day were statistically significant across pregnancy (r=0.94-0.99). Reproducibility ranged from 0.35 in early pregnancy to 0.77 in mid pregnancy. In summary, the PPAQ-SF can provide a time-efficient measure of MVPA during pregnancy with acceptable validity; reproducibility was reasonable in mid-pregnancy.
开发并评估妊娠体力活动问卷简表（PPAQ-SF）的有效性。一项前瞻性队列研究的参与者（N = 50）完成了更新后的PPAQ（长表），并在妊娠早期、中期和晚期的非优势手腕上佩戴ActiGraph 7天。选取了对PPAQ评估的每日总代谢当量小时数的个体间差异贡献最大的前十个问题。在当前数据集中，使用ActiGraph和更新后的PPAQ（长表）评估内部有效性。还在一个由222名孕妇组成的外部验证数据集中，使用更新后的和原始的PPAQ（长表）评估有效性。PPAQ-SF与ActiGraph对每日中等强度身体活动代谢当量小时数的估计值之间的Spearman相关性在整个孕期为r = 0.34（95%CI 0.18 - 0.48），在妊娠早期为0.21（95%CI -0.07 - 0.47），在妊娠中期为0.49（95%CI 0.23 - 0.69）。在外部验证数据集中，PPAQ-SF与PPAQ（长表）对每日中等强度身体活动代谢当量小时数的估计值之间的相关性在整个孕期均具有统计学意义（r = 0.94 - 0.99）。再现性在妊娠早期为0.35，在妊娠中期为0.77。总之，PPAQ-SF能够在妊娠期间提供一种省时的中等强度身体活动测量方法，有效性可接受；在妊娠中期再现性合理。
