Table 2.

Descriptive statistics of job demands and teamwork and differences between 2011 (Time 1) and 2014 (Time 2)

		Mean	SD	t	Mean diff. (95% CI)	p
Job demands - Physical demands	2011	3.29	0.67	-0.043	0.003 (-0.11, 0.12)	0.965
	2014	3.3	0.64
Job demands - Organizational demands	2011	2.34	0.77	-2.38	-0.16 (-0.3, -0.03)	0.017
	2014	2.51	0.73
Job demands - Emotional demands	2011	2.25	0.61	-3.68	-0.21 (-0.32, -0.1)	<0.001
	2014	2.46	0.65
Job demands - Cognitive demands	2011	2.64	0.71	-2.68	-0.17 (-0.3, -0.07)	0.008
	2014	2.82	0.73
Teamwork	2011	3.84	0.79	0.043	0.003 (-0.14, 0.15)	0.965
	2014	3.84	0.86