Table 4

Knowledge scores for the intervention and control groups after education (maximum score 31)

Group		Mean (SD) score				Mean (SD) change in score for pairs (95% CI)		Difference in mean change in score at 6 months (95% CI)	Statistics
Group		Immediately after intervention	6 months			Immediately after intervention - baseline	6 months - immediately after intervention	Difference in mean change in score at 6 months (95% CI)	Statistics	6 months - baseline
Intervention	22.8 (3.8)	21.5 (4.5)		2.4 (2.7)	−1.0 (2.4)	1.4 (3.0)
	(n = 34)	(n = 30)		(1.5 to 3.3)	(−0.11 to −1.95)	(0.27 to 2.52)
				(n = 34)	(n = 30)	(n = 30)	0.6	t = 0.65
				(p = 0.0001)	(p = 0.02)	(p = 0.03)	(−1.05 to 2.25)	p = 0.51
Control	—	21.2 (4.4)		—	—	0.8 (4.2)
		(n=47)				(−0.44 to 2.04)
						(n = 47)
						(p = 0.33)