Effect of preoperative prophylactic intravenous tranexamic acid on perioperative blood loss control in patients undergoing cesarean delivery: a systematic review and meta-analysis

Table 4 Results of quality assessment using the Newcastle–Ottawa Scale for cohort studies

Study	Selection				Comparability	Outcome			Quality score
Study	Representativeness of the exposed cohort	Selection of the non-exposed cohort	Ascertainment of exposure	Demonstration that outcome of interest was not present at start of study	Comparability of cohorts on the bias of the design or analysis^a	Assessment of outcome	Was follow-up long enough for outcomes to occur	Adequacy of follow-up of cohorts	Quality score
Upasana Goswami [24]	☆	☆	☆	☆	☆		☆	☆	7
Ming-ying Gai [25]	☆	☆	☆	☆	☆	☆	☆	☆	8
Tullika Singh [26]	☆	☆	☆	☆	☆		☆	☆	7
A. V. Chandak [27]	☆	☆	☆	☆	☆		☆	☆	7
Leila Sekhavat [28]	☆	☆	☆	☆	☆	☆	☆	☆	8
Irene Ray [29]	☆	☆		☆	☆		☆	☆	6
S.J. Dhivya Lakshmi [30]	☆	☆	☆	☆	☆		☆	☆	7
Khing Rushulo [31]	☆	☆		☆	☆		☆	☆	6
P. Malathi [32]	☆	☆		☆	☆	☆	☆	☆	7
Samir Abd Allah Ali [33]	☆	☆	☆	☆	☆		☆	☆	7
Ayman A. Soliman [34]	☆	☆	☆	☆	☆		☆	☆	7
Noshina Shabir [35]	☆	☆	☆	☆	☆		☆	☆	7

ISSN: 1471-2393