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. 2014 Mar 12;39(8):1799–1804. doi: 10.1038/npp.2014.36

Table 1. Sample Characteristics.

  BPD Healthy women Statistics
Age (mean (SD)) 24.3 (5.7) 25.5 (5.6) tdf71=−0.86, p=0.40
Years of school education (mean (SD)) 10.2 (1.5) 11.0 (1.5) tdf67=−2.31, p=0.02
Body mass index (mean (SD)) 26.0 (7.1) 23.6 (5.0) tdf71=−1.65, p=0.10
Smoker (yes/no) 27/11 10/24 χ2=12.45, p<0.001
Intake of oral contraceptives (yes/no) 9/29 16/19 χ2=4.76, p=0.03

Abbreviation: BPD, borderline personality disorder.