Table 4. Predictors of Emotional Exhaustion Scores Among Staff

Variable	Model 1		Model 2		Model 3		Model 4
Variable	β	95% CI	β	95% CI	β	95% CI	β	95% CI
Hours worked per week
≤20	Ref		Ref		Ref		Ref
>20	0.59^*	0.09 to 1.10	0.33	−0.10 to 0.76	0.29	−0.18 to 0.76	0.31	−0.15 to 0.77
Tenure (years)
<1	Ref		Ref		Ref		Ref
1–5	0.47	−0.07 to 1.00	0.46	−0.03 to 0.94	0.34	−0.11 to 0.80	0.35	−0.12 to 0.82
>5	0.73^*	0.12 to 1.35	0.63^*	0.09 to 1.17	0.50^*	0.06 to 0.94	0.50^*	0.06–0.94
System
County	Ref		Ref		Ref		Ref
University	0.22	−0.41 to 0.85	0.53^*	0.02 to 1.04	0.40	−0.13 to 0.93	0.40	−0.13 to 0.94
EHR in transition
No	Ref		Ref		Ref		Ref
Yes	1.42^{^†}	1.08 to 1.77	1.49^{^†}	1.01 to 1.98	1.40^{^†}	0.84–1.95	1.38^{^†}	0.82–1.95
Room patients/take vitals
No	Ref		Ref		Ref		Ref
Yes	0.28	−0.17 to 0.72	0.24	−0.14 to 0.62	0.27	−0.07 to 0.61	0.28	−0.05 to 0.60
Team structure
No team	Ref		Ref		Ref		Ref
Team or teamlet	0.04	−0.42 to 0.50	−0.08	−0.45 to 0.29	0.16	−0.17 to 0.49	0.15	−0.17 to 0.46
Team culture	−0.34^{^†}	−0.46 to −0.21			−0.33^{^†}	−0.45 to −0.21	−0.33^{^†}	−0.45 to −0.21
Team structure × team culture							−0.08	−0.29 to 0.12
QIC fit index for model				618.99		535.43		536.27

β Values are coefficients of linear regressions using generalized estimated equations associated with changes in the exhaustion score; positive numbers represent greater exhaustion and negative numbers represent less exhaustion.
↵* P < .05.
↵† P < .001.
CI, confidence interval; EHR, electronic health record; QIC, quasi-likelihood under the independence model criterion; Ref, reference category.