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. Author manuscript; available in PMC: 2019 Aug 22.
Published in final edited form as: J Matern Fetal Neonatal Med. 2017 Sep 12;32(2):193–197. doi: 10.1080/14767058.2017.1374364

Table 3.

Neonatal respiratory morbidity for repeat cesarean delivery at 37 versus 38 versus 39 versus 40 versus >41 weeks’ gestation (N = 16,860).

37 – 37 + 6 weeks
(N = 1593)		 38 – 38 + 6 weeks
(N = 6662)		 39 – 39 + 6 weeks
(N = 5146)		 40 – 40 + 6 weeks
(N = 1552)		 > = 41 weeks
(N = 649)		 p value
Dating
 1st trimester US (N = 5486) 61 (10.5) 137 (5.2) 59 (3.5) 10 (2.4) 7 (4.6) .001
 2nd trimester US (N = 8393) 61 (7.6) 176 (5.1) 121 (4.1) 35 (4.1) 18 (5.2) .001
 3rd trimester US (N = 1723) 21 (10.2) 34 (6.2) 24 (4.4) 9 (3.3) 12 (7.8) .009
p value .025 .223 .169 .030 <.001

Values are expressed as N (%).