A Population-Based Study of Meconium Aspiration Syndrome in Neonates Born between 37 and 43 Weeks of Gestation

Table 1

Odds ratios (95% CI; P value) of meconium-stained amniotic fluid (MSAF) and meconium aspiration syndrome (MAS) in neonates born between 38 and 43 WG compared to neonates born at 37 WG.

	38 WG	39 WG	40 WG	41 WG	42 SA	43 WG
MSAF	1.11 [0.97, 1.28; 𝑃=0.13]	1.94 [1.71, 2.20; 𝑃<0.0001]	3.22 [2.84, 3.63; 𝑃<0.0001]	4.08 [3.61, 4.62; 𝑃<0.0001]	4.96 [4.20, 5.87; 𝑃<0.0001]	5.29 [2.03, 13.8; 𝑃=0.0007]
MAS	0.89 [0.42, 1.90; 𝑃=0.77]	0.96 [0.48, 1.93; 𝑃=0.92]	2.10 [1.09, 4.03; 𝑃=0.026]	2.25 [1.16, 4.38; 𝑃=0.016]	3.97 [1.65, 9.55; 𝑃=0.002]	27.3 [3.40, 220; 𝑃=0.002]