Table 3.

Least square mean estimation of study outcomes from baseline to follow-up in the SSWell study stratified by intervention group

		Intervention	No intervention
Business	Time	Mean (95% CI)	Mean (95% CI)	p-value
TWH policies and programs score	Baseline	41.58 (8.78, 74.37)	43.44 (11.25, 75.63)	0.752
	Follow-up	57.57 (23.69, 91.45)	62.79 (30.08, 95.50)	0.573
	Difference	15.99 (-47.58, 79.57)	19.35 (-43.92, 82.63)	0.682
Employee	Time	Mean (95% CI)	Mean (95% CI)	p-value
Safety Leadership	Baseline	3.75 (2.99, 4.51)	3.61 (2.85, 4.37)	0.351
	Follow-up	3.57 (2.76, 4.37)	3.69 (2.94, 4.45)	0.593
	Difference	-0.18 (-1.68, 1.31)	0.09 (-1.38, 1.55)	0.175
Health Leadership	Baseline	3.48 (2.65, 4.30)	3.51 (2.69, 4.33)	0.831
	Follow-up	3.79 (2.92, 4.67)	3.79 (2.98, 4.61)	0.990
	Difference	0.31 (-1.28, 1.92)	0.28 (-1.30, 1.86)	0.880
Safety Climate	Baseline	3.61 (2.94, 4.29)	3.49 (2.83, 4.15)	0.454
	Follow-up	4.09 (3.79, 4.80)	4.10 (3.43, 4.76)	0.986
	Difference	0.48 (-0.81, 1.76)	0.60 (-0.65, 1.86)	0.456
Health Climate	Baseline	4.04 (3.34, 4.74)	4.12 (3.42, 4.81)	0.562
	Follow-up	3.74 (3.00, 4.48)	4.04 (3.34, 4.73)	0.151
	Difference	-0.31 (-1.69, 1.08)	-0.08 (-1.44, 1.28)	0.226
Safety Behavior	Baseline	3.98 (3.46, 4.51)	4.09 (3.57, 4.62)	0.238
	Follow-up	3.75 (3.19, 4.30)	4.02 (3.50, 4.55)	0.076
	Difference	-0.24 (-1.28, 0.81)	-0.07 (-1.10, 0.95)	0.242
Health Behavior	Baseline	3.26 (2.53, 4.00)	3.38 (2.65, 4.12)	0.392
	Follow-up	3.90 (3.12, 4.68)	3.89 (3.16, 4.62)	0.960
	Difference	0.64 (-0.81, 2.09)	0.51 (-0.91, 1.93)	0.495
Well-being	Baseline	3.42 (2.85, 3.99)	3.49 (2.92, 4.06)	0.424
	Follow-up	3.47 (2.87, 4.07)	3.82 (3.25, 4.39)	0.030
	Difference	0.05 (-1.08, 1.19)	0.33 (-0.78, 1.44)	0.071