Table 3 Association between potential risk factors and major depressive disorder (MDD) and generalized anxiety disorder (GAD)

 18~

1.00

1.00

1.00

1.00

1.00

1.00

 30~

1.27 (0.89–1.81)

1.48 (1.01–2.18)^*

1.33 (0.77–2.31)

1.48 (0.76–2.85)

1.28 (0.81–2.03)

1.51 (0.93–2.43)

 40~

1.31 (0.94–1.81)

1.59 (1.11–2.28)^*

1.10 (0.66–1.84)

1.47 (0.80–2.70)

1.46 (0.95–2.24)

1.64 (1.05–2.56)^*

 50~

1.36(0.99–1.86)

1.67 (1.17–2.37)^*

0.86 (0.52–1.41)

1.24 (0.68–2.26)

1.66 (1.09–2.53)^*

1.81 (1.16–2.81)^*

 60~

1.15 (0.83–1.59)

1.27 (0.89–1.82)

0.70 (0.42–1.16)

0.95 (0.52–1.73)

1.45 (0.94–2.23)

1.38 (0.88–2.17)

 70~

1.06 (0.75–1.48)

1.23 (0.85–1.80)

0.67 (0.40–1.14)

0.89 (0.47–1.67)

1.30 (0.83–2.04)

1.36 (0.85–2.19)

 P _trend

< 0.001

< 0.001

< 0.001

< 0.001

0.574

0.592

 P _interaction

0.001

0.161

 Men

1.00

1.00

 Women

1.30 (1.13–1.49)^*

1.54 (1.33–1.80)

 Married/ cohabiting

1.00

1.00

1.00

1.00

1.00

1.00

 Widowed/single/divorced

1.22 (1.05–1.43)^*

1.19 (1.01–1.41)^*

1.37 (1.06–1.77)^*

1.22 (0.91–1.65)

1.11 (0.91–1.35)

1.15 (0.94–1.41)

 Primary school or below

1.00

1.00

1.00

1.00

1.00

1.00

 Junior high school or above

0.76 (0.68–0.84)^*

0.72 (0.62–0.84)^*

0.75 (0.62–0.90)^*

0.79 (0.64–0.97)^*

0.79 (0.69–0.91)^*

0.73 (0.64–0.84)^*

  < 500

1.00

1.00

1.00

1.00

1.00

1.00

 500~

0.63 (0.56–0.71)^*

0.73 (0.65–0.83)^*

0.62 (0.51–0.77)^*

0.77 (0.61–0.97)^*

0.64 (0.55–0.74)^*

0.69 (0.59–0.80)^*

  ≥ 1000

0.63 (0.56–0.72)^*

0.78 (0.68–0.88)^*

0.66 (0.54–0.81)^*

0.82 (0.65–1.03)

0.62 (0.54–0.72)^*

0.70 (0.61–0.82)^*

 P _trend

< 0.001

0.069

< 0.001

0.069

< 0.001

< 0.001

 No

1.00

1.00

1.00

1.00

1.00

1.00

 Yes

0.99 (0.84–1.18)

0.95 (0.78–1.14)

0.97 (0.82–1.16)

0.95 (0.78–1.14)

1.26 (0.50–3.20)

1.59 (0.67–3.77)

 No

1.00

1.00

1.00

1.00

1.00

1.00

 Yes

0.81 (0.68–0.96)^*

0.88 (0.74–1.06)

0.75 (0.62–0.91)^*

0.80 (0.66–0.98)^*

1.07 (0.70–1.63)

1.13 (0.75–1.71)

 Low

1.00

1.00

1.00

1.00

1.00

1.00

 Moderate

0.88 (0.78–0.99)^*

1.11 (0.97–1.26)

0.88 (0.72–1.09)

1.04 (0.82–1.31)

0.91 (0.79–1.05)

1.17 (1.01–1.36)^*

 High

0.89 (0.78–1.01)

1.20 (1.05–1.37)^*

0.79 (0.65–0.97)^*

1.01 (0.81–1.26)

0.95 (0.81–1.11)

1.31 (1.11–1.54)^*

 P _trend

0.070

0.003

0.022

0.942

0.479

0.001

 No

1.00

1.00

1.00

1.00

1.00

1.00

 Yes

1.11 (1.01–1.24)^*

1.09 (0.97–1.22)

1.13 (0.94–1.36)

1.03 (0.84–1.25)

1.12 (0.98–1.28)

1.12 (0.98–1.28)

 Underweight

1.43 (1.09–1.87)^*

1.01 (0.73–1.37)

1.49 (0.99–2.25)

1.34 (0.83–2.15)

1.41 (1.01–1.98)^*

0.85 (0.57–1.29)

 Normal

1.00

1.00

1.00

1.00

1.00

1.00

 Overweight

0.87 (0.78–0.97)^*

0.84 (0.75–0.94)^*

0.84 (0.69–1.01)

0.86 (0.70–1.06)

0.87 (0.76–0.99)^*

0.81 (0.71–0.93)^*

 Obesity

0.86 (0.74–0.99)^*

0.70 (0.60–0.82)^*

0.66 (0.50–0.88)^*

0.66 (0.48–0.90)^*

0.90 (0.76–1.07)

0.69 (0.57–0.82)^*

 P _trend

0.001

0.003

< 0.001

0.003

0.023

0.001