. Author manuscript; available in PMC: 2019 Apr 2.

Published in final edited form as: J Forensic Nurs. 2019 Jan-Mar;15(1):42–51. doi: 10.1097/JFN.0000000000000229

TABLE 2.

Multivariate Poisson Regression Models for Factors Associated With Short Sleep Duration and Poor Sleep Quality Among Correctional Nurses

Predictor variable	Short sleep duration		Poor sleep quality
Predictor variable	PR	95% Cl	PR	95% Cl
Shift work
Day	1.00		1.00
Evening	0.94	0.48, 1.85	0.36^***	0.11, 1.17
Night	1.95^*	1.03, 3.70	0.89	0.41, 1.93
Rotating
Stress	0.97	0.71, 1.34	1.52^***	0.95, 2.45
Marital status
Married	1.00		1.00
Single	2.25^*	1.11, 4.54	1.02	0.40, 2.59
Separated/ Widowed/ divorced	0.92	0.37, 2.27	0.23^***	0.05, 1.01
Education
College	1.00		1.00
Graduate	1.78^***	0.96, 3.31	0.15^***	0.02, 1.34

Both models were adjusted for age, weight, childcare, MSDs, depression, psychological demands, and intention to turnover. Psychological demands and intention to turnover were included in both models because of their correlates with either short sleep duration or poor sleep quality at the p < 0.10 level in the bivariate analyses. Missing value in the rotating shift category was because of only one participant reporting a rotating shift schedule in this study. PR = prevalence ratio; CI = confidence interval.

p < 0.05.

^**

p < 0.01.

^***

p < 0.10.