TABLE 4.

Sensitivity Analyses^a

		Adjusted Meansb
Sensitivity Analysis	N	Control	STAR	ROIc
Include hours of paid time off taken	946	43,735.57	42,190.34	1.24
Include employee bonus in total compensation	946	32,169.69	30,098.49	2.00
Include 14 subjects with missing data on benefits	960	28,580.65	26,498.97	2.02
Change discount rate to 0%	946	29,042.93	27,149.32	1.74
Change discount rate to 6%	946	27,981.94	26,172.67	1.62
Increase costs of presenteeism by 20%	946	31,545.30	29,708.14	1.66
Decrease costs of presenteeism by 20%	946	25,469.02	23,570.17	1.75
Increase costs of health care utilization by 20%	946	28,673.27	26,827.92	1.67
Decrease costs of health care utilization by 20%	946	28,327.54	26,469.26	1.69
Increase costs of turnover to two times total compensation	946	32,653.15	30,099.41	2.70
Decrease costs of turnover to 1 time total compensation	946	24,365.79	23,151.75	0.76

^aResults from regression models with adjusted dependent variables. Dependent variables are expressed in US dollars (2011 prices).

^bAdjusted means of organizational costs computed using recycled predictions.

^cROI calculated as $\frac{\mathrm{\Delta }E-\mathrm{\Delta }C}{\mathrm{\Delta }C}$, where ΔE is the marginal effect of STAR on organizational costs and ΔC is the marginal effect of STAR on intervention costs.

ROI, return on investment; STAR, support, transform, achieve, results.