Table 6.

Comparison of the mean of intragroup total communication skills in study groups

Group	Time	Mean difference	SD difference	P
Control	Before versus 2 weeks after	−1.11	1.26	1.000
	Before versus a month after	−0.25	1.71	1.000
	2 weeks later versus 1 month after	0.85	1.09	1.000
Intervention	Before versus 2 weeks after	−21.51	1.26	0.001
	Before versus a month after	−35.94	1.71	0.001
	2 weeks later versus 1 month after	−14.42	1.09	0.001

SD=Standard deviation