Nursing Workload Prediction for Upcoming Shifts: A Retrospective Observational Exploratory Study in the Postoperative and Intensive Care Unit

Table 3

Linear regression by individual data with NAS-day shift and NAS-night shift as dependent variables.

NAS-day shift as a dependent variable	Univariable linear regression				Multivariable linear regression
	B (95% CI)	β			B (95% CI)	β		Adjusted  = 0.174
Age, day	0.12 (0.05, 0.19)	0.07	<0.001	0.005	0.17 (0.11, 0.23)	0.10	<0.001
Sex, day (men 0, women 1)	−8.76 (−11.30, −6.23)	−0.13	<0.001	0.018	−5.34 (−7.73, −2.96)	−0.08	<0.001
Ward, day (medical 0, surgical 1)	−23.39 (−26.03, −20.74)	−0.33	<0.001	0.107	−17.13 (−19.87, −14.38)	−0.24	<0.001
Type of admission, day (elective 0, emergency 1)	23.34 (20.71, 25.96)	0.33	<0.001	0.108	17.16 (14.48, 19.84)	0.24	<0.001
NAS-evening shift as a dependent variable	Univariable linear regression				Multivariable linear regression
	B (95% CI)	β			B (95% CI)	β		Adjusted  = 0.193
Age, day	0.14 (0.07, 0.22)	0.08	<0.001	0.007	0.22 (0.15, 0.28)	0.12	<0.001
Sex, day (men 0, women 1)	−10.92 (−13.65, −8.19)	−0.17	<0.001	0.027	−6.97 (−9.52, −4.42)	−0.11	<0.001
Ward, day (medical 0, surgical 1)	−28.65 (−31.43, −25.87)	−0.40	<0.001	0.157	−25.06 (−27.99, −22.12)	−0.35	<0.001
Type of admission, day (elective 0, emergency 1)	17.61 (14.70, 20.53)	0.25	<0.001	0.060	8.66 (5.79, 11.52)	0.12	<0.001

NAS, nursing activities score; B, unstandardized regression coefficient; CI, confidence interval; β, standardized regression coefficient. value <0.05 indicates statistical significance.