“…It has been suggested that vitamin C could be effective in preventing premature rupture of membranes (PROM) and preterm birth, but previous systematic reviews and meta-analyses had inconsistent results [1][2][3][4]. Some found that women supplemented with vitamin C had reduced risk of preterm PROM (PPROM) [1] and term PROM (TPROM) [1], while other found that vitamin C supplementation was not effective in reducing risk of PPROM [3,4] or preterm birth [1,3] or, conversely, that it was associated with an increased risk of preterm birth [2]. Considering previous inconsistencies, we aimed to conduct a systematic review and meta-analysis to determine if vitamin C supplements could be effective in preventing PROM or preterm birth.…”