Table 4 Multivariable logistic regression models for SUN^a and its different categories of reasons, Iran 2016

 Male

1

1

1

 Female

0.90 (0.78–1.02)

0.109

0.89 (0.77–1.03)

0.114

1.02 (0.73–1.44)

0.897

 Under 30

1

1

1

 30–59

1.19 (1.00–1.42)

0.047

1.13 (0.93–1.36)

0.225

1.61 (1.03–2.51)

0.035

 60 and above

0.84 (0.67–1.05)

0.130

0.71 (0.55–0.92)

0.009

1.77 (1.03–3.05)

0.039

 Married

0.86 (0.72–1.04)

0.129

0.87 (0.71–1.07)

0.197

1.24 (0.77–2.00)

0.380

 Widowed or divorced

0.89 (0.69–1.16)

0.408

0.86 (0.64–1.16)

0.319

1.57 (0.85–2.90)

0.151

 Single

1

1

1

 Illiterate

1.23 (1.02–1.48)

0.034

1.56 (1.26–1.93)

< 0.001

0.49 (0.31–0.76)

0.002

 Primary

1.18 (1.00–1.39)

0.045

1.46 (1.21–1.76)

< 0.001

0.61 (0.35–0.74)

< 0.001

 Secondary

1.00 (0.84–1.20)

0.962

1.19 (0.97–1.46)

0.098

0.70 (0.39–0.95)

0.028

 Diploma or higher

1

1

1

 Employed

1.18 (1.01–1.36)

0.032

1.17 (0.99–1.37)

0.062

1.42 (0.99–2.04)

0.058

 Unemployed

1

1

1

 Urban

1

1

1

 Rural

1.08 (0.96–1.21)

0.196

1.07 (0.94–1.21)

0.288

1.17 (0.86–1.59)

0.311

 Poorest

1.88 (1.54–2.29)

< 0.001

2.35 (1.87–2.96)

< 0.001

0.77 (0.43–1.38)

0.373

 Poor

1.42 (1.16–1.73)

< 0.001

1.72 (1.36–2.18)

< 0.001

0.88 (0.66–1.37)

0.625

 Middle

1.38 (1.14–1.68)

< 0.001

1.76 (1.39–2.22)

< 0.001

0.82 (0.53–1.26)

0.365

 Rich

1.34 (1.11–1.63)

< 0.001

1.53 (1.21–1.93)

< 0.001

1.23 (0.80–1.90)

0.336

 Richest

1

1

1

1

 Yes

0.82 (0.65–1.02)

0.078

0.76 (0.60–0.97)

0.026

1.14 (0.67–1.93)

0.350

 No

1

1

1

 Yes

0.75 (0.63–0.89)

< 0.001

0.60 (0.49–0.74)

< 0.001

1.51 (0.64–1.56)

0.350

 No

1

1

1

 One

1

1

1

1

 Two or above

2.58 (2.29–2.90)

< 0.001

3.06 (2.69–3.47)

< 0.001

1.54 (1.10–2.16)

0.013

 Hosmer-Lemeshow goodness-of-fit test