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Table 1 Demographic characteristics of the 10,710 ABCD participants

From: Severe nausea and vomiting in pregnancy: psychiatric and cognitive problems and brain structure in children

  Controls (N = 9214) SNVP (N = 1496) Comparison
t/χ2 statistic p value
Age (months) 119.06 ± 7.48 118.71 ± 7.37 1.704 0.088
Gender (male/female) 4358/4856 757/739 5.631 0.018
BMI 18.66 ± 4.08 19.48 ± 4.58 − 7.141 9.87 × 10−13
Parents income 7.70 ± 2.42 6.76 ± 2.95 13.48 4.47 × 10−41
Parents education 16.80 ± 2.65 15.55 ± 3.07 16.56 7.32 ×10−61
Puberty 1.58 ± 0.48 1.72 ± 0.55 − 9.935 3.71 × 10−23
Race (White/Black/Indian/others) 7151/1718/277/68 965/436/67/28 120.4 5.10 × 10−28
Use of tobacco (yes/no) 8062/1152 1260/236 11.47 7.09 × 10−4
Use of alcohol (yes/no) 6912/2302 1186/310 13.31 2.65 × 10−4
Use of marijuana (yes/no) 8767/447 1382/114 18.18 2.01 × 10−5
Use of cocaine/crack (yes/no) 9179/35 1485/11 1.556 0.212
Use of heroin/morphine (yes/no) 9204/10 1491/5 0.903 0.342
Use of oxytocin (yes/no) 9192/22 1489/7 0.470 0.493
  1. The data was shown as mean ± standard deviation