Table 4 Comparison of complications in the three groups under study by multinomial logistic regression model

Age

Buprenorphine

Reference

–

–

Methadone

1.001

0.94–1.05

0.958

Opium tincture

1.10

1.04–1.18

0.001

Sex

Buprenorphine

Reference

–

–

Methadone

1.42

0.53–3.80

0.381

Opium tincture

2.94

0.90–9.60

0.074

Duration of medication

Buprenorphine

Reference

–

–

Methadone

1.04

1.004–1.07

0.026

Opium tincture

1.007

0.97–1.04

0.693

Marital status

Buprenorphine

Reference

–

–

Methadone

2.06

0.53–8.01

0.298

Opium tincture

1.87

0.41–8.43

0.415

Education

Buprenorphine

Reference

–

–

Methadone

0.19

0.03–1.17

0.073

Opium tincture

0.44

0.06–2.99

0.405

Occupation

Buprenorphine

Reference

–

–

Methadone

0.45

0.12–1.66

0.229

Opium tincture

0.14

0.03–0.67

0.014

Anxiety

Buprenorphine

Reference

–

–

Methadone

0.73

0.61–0.88

0.001

Opium tincture

0.91

0.77–1.08

0.292

Depression

Buprenorphine

Reference

–

–

Methadone

1.17

0.98–1.39

0.080

Opium tincture

1.09

0.90–1.30

0.369

Sleep disorder

Buprenorphine

Reference

–

–

Methadone

1.22

1.001–1.48

0.048

Opium tincture

1.34

1.10–1.63

0.004

Sexual function

Buprenorphine

Reference

–

–

Methadone

0.98

0.95–1.02

0.360

Opium tincture

1.01

0.98–1.05

0.383