Table 4.

Baseline risk of BPD (DAT1 10,10 and HTR1A C,C) = 1.00, with frequencies of gene combinations.

Risk categories	Frequency	Adjusted OR (95% CI)
10,10; C,C	44 (16.3%)	–
10,10; C,G	81 (30.0%)	0.72 (0.27, 1.92)
10,10; G,G	33 (12.2%)	2.03 (0.74, 5.58)
9,10; C,C	21 (7.8%)	3.27 (1.42, 7.48)
9,10; C,G	54 (20.0%)	2.35 (1.42, 3.88)
9,10; G,G	21 (7.8%)	6.62 (3.62, 12.12)
9,9; C,C	6 (2.2%)	2.67 (0.63, 11.27)
9,9; C,G	6 (2.2%)	1.92 (0.68, 5.44)
9,9; G,G	4 (1.5%)	5.40 (1.67, 17.4)

BPD, borderline personality disorder; OR, odds ratio. Risk ratio between highest (9,10;G,G) and lowest (10,10;C,G) risk categories = 9.22.