Table 4.

Means and SDs of MBI subscales EE, CY, and redPE by survey and first year at PMU and significance levels

			Survey 1			Survey 2			Survey 3
			N	Mean	SD	N	Mean	SD	N	Mean	SD
EE	1st year	2009	39	3.61	1.02	30	4.19	0.87	15	3.76	0.89
		2008	37	4.22	0.75	26	4.58	0.62	21	4.77	0.84
		2007	15	4.12	0.86	20	5.26	0.71	14	4.19	0.88
		2006	24	4.08	0.77	11	4.15	0.92	16	4.07	1.24
		Total	115	3.97	0.90	87	4.55	0.87	66	4.25	1.02
		p	<0.0019			<0.005			<0.021
CY	1st year	2009	39	2.21	0.93	30	2.75	1.21	15	2.27	1.07
		2008	37	2.51	0.80	26	2.82	0.83	21	3.06	1.04
		2007	15	2.44	0.81	20	4.08	1.30	14	2.70	1.11
		2006	24	3.03	0.93	11	3.05	1.39	16	3.39	1.43
		Total	115	2.51	0.91	87	3.11	1.26	66	2.88	1.21
		p	<0.006			<0.001			<0.056
redPE	1st year	2009	39	2.13	0.62	30	2.44	0.86	15	2.36	0.76
		2008	37	2.05	0.46	26	2.38	0.49	21	2.45	0.57
		2007	15	2.03	0.79	20	2.78	0.71	14	2.15	0.82
		2006	24	2.18	0.80	11	2.15	0.68	16	2.42	0.73
		Total	115	2.10	0.63	87	2.46	0.72	66	2.36	0.70
		p	<0.828			0.103			0.657

MBI Maslach Burnout Inventory, EE emotional exhaustion, CY Cynicism, redPE reduced personal accomplishment, SD standard deviation