Table 2 Multivariate analysis of the risk factors for nonremission

 Minors

1 (reference)

0.778

 Youth

0.145

1.156 (0.675–1.979)

0.597

 Middle age

0.105

1.111 (0.562–2.198)

0.762

 Old age

−0.119

0.888 (0.398–1.978)

0.771

 Unmarried

1 (reference)

0.629

 Married

−0.096

0.909 (0.575–1.436)

0.682

 Divorced

0.343

1.409 (0.685–2.900)

0.352

 Widowed

−0.012

0.988 (0.318–3.070)

0.983

 < 18.5

1 (reference)

0.273

 18.5–23.9

0.462

1.588 (0.559–4.510)

0.385

 ≥24

0.859

2.361 (0.728–7.660)

0.152

 No

1 (reference)

 Yes

0.418

1.519 (1.015–2.273)

0.042

 No

1 (reference)

 Yes

0.789

2.202 (1.115–4.348)

0.023

 No

1 (reference)

 Yes

0.167

1.181 (0.652–2.140)

0.583

 No

1 (reference)

 Yes

2.088

8.072 (2.442–16.675)

0.001

 No

1 (reference)

 Yes

0.627

1.872 (0.991–3.539)

0.053

 No

 Yes

1.071

2.919 (1.240–6.871)

0.014

 No

1 (reference)

 Yes

0.496

1.643 (0.865–3.121)

0.129

 No

1 (reference)

 Yes

0.346

1.414 (0.992–2.016)

0.055

 No

1 (reference)

 Yes

0.257

1.293 (0.912–1.833)

0.148

Duration of depression (1 month increase)

0.002

1.002 (1.000–1.004)

0.075

Number of ECT (1 time increase)

−0.127

0.881 (0.834–0.930)

< 0.001