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. 2019 Jul 25;19:265. doi: 10.1186/s12884-019-2410-8

Table 1.

Baseline Characteristics

Characteristics IOL (n = 380) SOL (n = 585) p
Multiparity 155 (40.8%) 270 (46.2%) 0.101a
BMI (kg/m2) 24.9 ± 4.8 23.8 ± 4.5 < 0.001b
Age in years 32.2 ± 5 32.4 ± 4.8 0.51b
Gestational age in days 280 ± 9.1 277 ± 8.4 < 0.001b
Birthweight in g 3440 (3130–3739) 3340 (3065–3613) < 0.01b

Data presented as n (%), mean ± SD or median (25th percentile – 75th percentile) as appropriate. n number, SD standard deviation, a: Chi square Test, b: Mann Whitney U Test