Table 2 Odds ratios (ORs) and 95% confidence intervals (CIs) of depression according to individual lifestyle risk factors

 Smoking

0.597 (0.454–0.786)

<  0.001

1.531 (0.986–2.316)

0.050

 At-risk alcohol intake

0.374 (0.404–1.331)

0.308

1.151 (0.617–2.147)

0.657

 Physical inactivity

1.789 (1.050–3.048)

0.032

1.194 (0.687–2.074)

0.529

 Nutritional inadequacy

2.010 (1.529–2.643)

0.001

1.559 (1.170–2.078)

0.002

 Smoking

1.263 (0.669–2.384)

0.471

1.141 (0.599–2.172)

0.688

 At-risk alcohol intake

1.258 (0.613–2.584)

0.531

1.453 (0.693–3.049)

0.323

 Physical inactivity

2.555 (0.921–7.089)

0.072

1.851 (0.652–5.252)

0.247

 Nutritional inadequacy

1.920 (1.156–3.189)

0.012

1.518 (0.897–2.570)

0.120

 Smoking

2.000 (1.192–3.355)

0.009

1.835 (1.085–3.104)

0.024

 At-risk alcohol intake

0.863 (0.262–2.849)

0.810

0.775 (0.232–2.593)

0.679

 Physical inactivity

1.061 (0.560–2.009)

0.857

0.933 (0.483–1.802)

0.837

 Nutritional inadequacy

1.723 (1.239–2.396)

0.001

1.585 (1.125–2.233)

0.009