Table 3 Bi variable and multi variable logistic regression model of participants scheduled for elective surgical procedures in Wolaita Zone, Southern Ethiopia (N = 322)

Sex

Male

49(33.1%)

99(66.9%)

1

1

Female

34(19.1%)

140(80.5%)

2.83 (1.17–6.86)

1.31 (0.79–2.15)

Age groups (years)

< 18

11(11.2%)

11(12.6%)

1

1

18–30

22(26.5%)

22(25.3%)

2.61 (0.91–5.66)

2.18 (0.89–6.97)

31–43

33(39.8%)

33((37.9%)

2.99(1.38–6.49)

2.83(1.17–6.86) *

44–56

21(25.3%)

21(25.3%)

2.58(1.11–5.56)

1.15(0.39–3.33)

> 57

6(7.2%)

159(85.9%)

2.99(1.38–6.49)

2.83(0.17–5.86)

Occupation87

Unemployed

11(12.6%)

12(6.5%)

1

1

Employed

22(25.3%)

14(7.6%)

2.36(1.57–3.27)

1.31(0.79–2.15)

Merchants

33((37.9%)

16(91.4%)

2.78 (1.11–5.56)

1.31 (0.79–2.15)

Farmer

21(25.3%)

28(7.0%)

2.26 (0.91–5.66)

2.48 (0.89–6.97)

Annual income (ETB)

< 2000

159(85.9%)

116(63.8%)

1

1

2001–4000

12(6.5%)

61(15.2%)

2.26(0.91–5.66)

2.48(0.89–6.97)

> 4001

14(7.6%)

84(20.9%)

2.48(1.11–5.56)

1.15(0.39–3.33)

Patient refusal

Yes

16(91.4%)

272(82.8%)

1

1

No

16(8.6%)

69(17.2%)

3.04(1.94–4.78)

2.33(1.20–4.51) *

Time scheduled

morning

174(94.1%)

336(83.8%)

1

1

Afternoon

11(5.9%)

65(16.2%)

3.06(1.57–5.95)

0.95(0.39–2.27)

Blood not prepared

Yes

157(84.9%)

260(64.8%)

1

1

No

28(15.1%)

141(35.2%)

3.12(2.06–4.74)

1.25 (0.72–2.17)

Department of surgical procedures

General surgery

149(80.5%)

235(58.6%)

1

1

Gynecology

9(4.9%)

19(4.7%)

3.16 (3.16–1.65)

2.21(0.82–5.95)

Ophthalmology

18(9.7%)

114(28.4%)

3.73 (3.73–2.05)

2.53(1.52–4.49) *

Orthopedics

7(3.8%)

28(7.0%)

3.06 (1.57–5.95)

2.26 (0.91–5.66)

Rise hypertension

No

80(43.2%)

101(25.2%)

1

1

Yes

105(56.8%)

130(74.8%)

2.20 (2.20-11.24)

3.48 (1.22–9.95) *

Marital status

Married

14(10.6%)

14(4.0%)

1

1

Single

19(14.4%)

43(12.2%)

1.34(0.59–3.04)

0.70(0.25–1.94)

Divorced

99(75.0%)

196(83.9%)

1.33 (0.13–1.85)

0.95 (0.39–2.27)

Windowed

14(10.6%)

14(4.0%)

2.54(1.08–5.95)

0.731(0.18–3.03)

Educational status

Primary school

10(5.4%)

61(15.2%)

1

1

Secondary school

37(20.0%)

77(19.2%)

2.34(1.16–3.74)

1.33 (0.13–1.85)

Illiterate

118(74.6%)

163(65.6%)

0.31(0.16–0.63)

0.44(0.18–1.07)

Diploma & above

10(5.4%)

61(15.2%)

3.06 (1.57–5.95)

1.06 (0.57–5.95)

Lack of lab investigation

Yes

104(94.1%)

236(83.8%)

1

1

No

11(5.9%)

65(16.2%)

3.54(1.08–5.95)

3.01 (1.22–5.05)

Place of residences

Urban

169(91.4%)

122(82.8%)

1

1

Rural

16(8.6%)

69(17.2%)

4.016(2.34–6.87)

2.87(1.14–7.18) *