Table 4 Logistic regression results for parental attachment, personality characteristics, demographic variables, and allelic frequencies that increase the risk of major depressive disorder (MDD) in participants who had attempted suicide

Maternal care

-0.05

0.04

1

0.246

1.05

0.97

1.14

Maternal protection

-0.10

0.06

1

0.081

1.10

0.99

1.23

Paternal care

-0.06

0.04

1

0.128

1.07

0.98

1.15

Paternal protection

-0.05

0.44

1

0.290

1.05

0.96

1.14

Extraversion

-0.02

0.06

1

0.757

1.02

0.90

1.16

Neuroticism

0.08

0.08

1

0.283

0.92

0.80

1.07

Somatic symptoms

0.25

0.16

1

0.124

0.78

0.57

1.07

Sex

0.60

0.45

1

0.189

0.55

0.23

1.34

Age

-0.06

0.02

1

<0.001

1.06

1.03

1.09

Smoke

0.71

0.44

1

0.11

0.49

0.21

1.17