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. 2020 Apr 6;20:196. doi: 10.1186/s12884-020-02886-z

Table 1.

Patient demographics for cases and controls

Demographics Case (N = 145) Control (N = 145)
Age – mean (standard deviation) 34.5 (±5.0) 34.5 (±5.0)
Primiparous – n (%) 29 (20) 22 (15)
Caucasian – n (%) 13 (24) 42 (47)
English as primary language – n (%) 73 (90) 118 (96)
Median household income ($ CAD) – median (Q1-Q3) 92,160 (72453–115,438) 94,254 (77846–119,354)
Vegetarian – n (%) 6 (4) 2 (1)
Prenatal vitamin – n (%) 136 (94) 143 (99)
Mode of delivery – n (%) Vaginal: 58 (40) 90 (62)
Cesarean: 87 (60) 55 (38)