First Author, (Ref), Year, Country | Matched or adjusted factors |
---|---|
Sleep Duration | |
Trivedi et al., [30] 2018, India | Age at pregnancy, caste, religion, occupation, literacy, and number of Ante Natal Care visits |
Li et al., [31] 2017, China | Pre-pregnancy body mass index and birth weight |
Kajeepeta et al., [32] 2014, Peruvian | Maternal age, pre-pregnancy weight, unplanned pregnancy, and no vitamin use during pregnancy |
Guendelman et al., [12] 2013, USA | Race and month of delivery |
Okun et al., [33] 2012, USA | Major depressive disorder, selective serotonin reuptake inhibitors, age, employment, marital status, history of preterm birth |
Reutrakul et al., [34] 2011, USA | Body mass index |
Micheli et al., [13] 2011, Greece | Maternal age, education, parity, smoking during pregnancy, pre-pregnancy body mass index |
Sleep Quality | |
Li et al., [31] 2017, China | Pre-pregnancy body mass index and birth weight |
Ota et al., [35] 2017, Japan | Infertility treatment, asthma, and history of alcohol use |
Blair et al., [36] 2015, USA | Age |
Reutrakul et al., [34] 2011, USA | Body mass index |
Okun et al., [14] 2011, USA | Income and medical risk factors |