Table. 2.

Hierarchical Logistic Regression Analysis about Insomnia among Hospital Nurses

Variables Model 1 Model 2


B SE Wald p OR (95% CI) B SE Wald p OR (95% CI)
Consecutive night shift
0 ref ref
2 nights 0.69 1.00 0.48 .488 2.00 (0.28~14.20) 1.32 1.11 1.41 .235 3.74 (0.42~33.01)
3 nights 1.32 0.63 4.46 .035 3.75 (1.10~12.79) 1.87 0.74 6.41 .011 6.49 (1.52~27.59)
4 night 2.35 0.90 6.83 .009 10.50 (1.80~61.24) 3.01 1.01 8.83 .003 20.24 (2.79~147.14)
Working hours per week 0.16 0.06 8.31 .004 1.17 (1.05~1.30)
Cox and Snell 0.15 0.28
Nagelkerke 0.20 0.38
Hosmer & Lemeshow x 2 76.99 (p<.000) 8.16 (p=.418)

No night-shift works; Classification accuracy=68.8%; OR=odds ratio.

Korean J Occup Health Nurs 2020;29:133~139 https://doi.org/10.5807/kjohn.2020.29.2.133
© Korean J Occup Health Nurs