Daytime Napping and Nighttime Sleep During Pregnancy and Preterm Birth in Iran

Objectives This study investigated the relationship between sleep quality during pregnancy and preterm birth. Methods longitudinal was conducted August 2018 May 2019. The participants were 150 pregnant women who had been referred to 7 healthcare centers in city of Qazvin, Iran met inclusion criteria. Petersburg Sleep Quality Index, Epworth Sleepiness Scale, 2 questions about daytime status a demographic questionnaire administered at 14-18 weeks 28-32 gestation. Data analyzed using Mann-Whitney test, Fisher exact univariate multivariable logistic regression. Results In present study, poor affected 84.7% 93.3% final model for birth prediction incorporated age Index score second third trimesters. Preterm increased by 14% with each unit increase age. With trimesters, 42% 28%, respectively, but p-values these factors not significant. Conclusions Although significant percentage quality, no found Key words: Pregnancy, Premature birth, Sleep,