. 2020 Jul 29;20:239. doi: 10.1186/s12909-020-02161-x

Table 2.

Results of pre- and post-course PD knowledge evaluations of all Laotian physicians

Items	All physicians (N = 80)		Board-certified physicians (N = 50)		Medical residents (N = 30)		p-value
Items	Pre	Post	Pre	Post	Pre	Post	p-value
• Total score	13.31 ± 3.09	15.61 ± 2.27	14.30 ± 2.92	15.77 ± 2.52	12.50 ± 2.43	15.37 ± 1.88	p_A < .001*
							p_B < .001*
							p_M < .01*
• Diagnosis section	6.87 ± 1.79	7.69 ± 1.74	7.34 ± 1.68	7.74 ± 1.82	6.57 ± 1.55	7.62 ± 1.66	p_A < .01*
							p_B = 0.14
							p_M < .05*
• Therapeutic options section	3.54 ± 1.21	4.27 ± 1.03	3.88 ± 1.24	4.49 ± 0.89	3.20 ± 0.96	3.96 ± 1.16	p_A < .001*
							p_B < .01*
							p_M < .01*
• Disease course section	2.89 ± 1.21	3.64 ± 0.98	3.08 ± 1.19	3.54 ± 1.04	2.73 ± 1.20	3.79 ± 0.88	p_A < .001*
							p_B < .01*
							p_M < .001*

Statistical analysis of data between pre- and post-evaluation amongst board-certified physicians group and medical residents group was performed by paired sample t-test, which p_A represents for all physicians, p_B represents for board-certified physicians group and p_M represents for medical residents group. Mean ± SD represented for mean and standard deviation; N: number of patients; *: denotes statistical significant results