“…When these data were available and the difference was statistically significant, the degree of earlier birth associated with SSRI exposure (relative to SSRI-unexposed women, regardless of presence of depression) was in the region of 2-6 days, 3,5,7,8,16,18 with most studies finding smaller rather than greater differences. In a systematic review and meta-analysis of 15 studies, Ross et al 19 found that gestational age was 3.2 (95% CI, 1.8-4.5) days shorter in women exposed to antidepressants relative to women in control groups; there was little difference in analyses restricted to different sets of controls.…”