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. 2020 Feb 19;20:79. doi: 10.1186/s12887-020-1981-x

Table 2.

Comparison of the intervention and control groups, concerning the TPB, before and after the intervention

Variable	Group	Intervetion		Control		P-value^a
Variable	Group	Mean	SD	Mean	SD	P-value^a
Knowledge	Before	0.62	0.16	0.58	0.15	0.2
	After	0.97	0.06	0.52	0.15	0.001
	P-value^b	0.001		0.08
Attitude	Before	3.89	0.36	3.8	0.33	1
	After	4.60	0.28	3.86	0.40	0.001
	P-value^b	0.001		0.53
Subjective norms	Before	4.15	0.43	4.10	0.49	0.63
	After	4.46	0.38	4.01	0.44	0.001
	P-value^b	0.001		0.20
Perceived behavior control	Before	4.41	0.47	4.37	0.45	0.61
	After	4.70	0.34	4.35	0.4	0.001
	P-value^b	0.001		0.73
Behavior intention	Before	4.63	0.43	4.61	0.42	0.82
	P-value^b	4.86	0.28	4.56	0.46	0.001
	After	0.001		0.41
Performance	Before	2.89	0.54	2.85	0.51	0.7
	After	3.74	0.29	2.8	0.48	0.001
	P-value^b	0.001		0.96

^aIndependent t test

^bPaired t test