Table 5 Factors associated with SWSD among nurses working at public hospitals in Harari Regional State and Dire Dawa Administration, Eastern Ethiopia, 2021(n = 369)

Age

20–29 year

1

1

30–39 year

1.25(0.76–2.05)

1.28(0.63–2.60)

≥ 40 year

2.94(1.54–5.6)

1.74(0.59–5.18)

Sex

Male

1

1

Female

1.74 (1.11–2.72)

2.37(1.34–4.18)**

Work experience

< 5 year

1

1

5–10 year

1.37 (0.82–2.23)

1.18(0.58–2.39)

> 10 year

2.43 (1.34–4.40)

0.89(0.32–2.45)

Nap during night Shiftwork time

Yes

1

1

No

1.48(0.93–2.38)

1.36(0.79–2.37)

Average number of nights per month in the last 1 year

≤ 11

1

1

>11

2.47(1.54–3.87)

2.27(1.34–3.84)**

Used prescribed sleep medication in the last 1 year

Yes

3.48(1.74–6.96)

2.18(0.92–5.19)

No

1

1

Chronic medical illness

Yes

2.20 (1.24–3.93)

1.05(0.42–2.62)

No

1

1

Depression

Yes

1.62(0.99–2.62)

0.74(0.28–1.95)

No

1

1

anxiety

Yes

1.61(0.99–2.58)

0.88(0.37–2.10)

No

1

1

stress

Yes

1.76 (1.00-3.11)

0.77(0.32–1.86)

No

1

1

Ever used tobacco

Yes

2.08(1.19–3.66)

1.21(0.59–2.47)

No

1

1

Used tobacco in the last 12 months

Yes

2.14(1.19–4.22)

1.33(0.63–2.81)

No

1

Used khat in last 12 month

Yes

4.65(2.89–7.48)

4.99(2.88–8.65)***

No

1

1