Effect of Health Education Programme on the Knowledge of and Attitude about Sickle Cell Anaemia among Male Secondary School Students in the Jazan Region of Saudi Arabia: Health Policy Implications

Table 3

Baseline and postintervention knowledge scores.

Knowledge score	Mean (SD)	95% CI of the mean diff.		Paired t-test; (df)	P-Value
		Lower	Upper
Baseline	6.04 (3.02)	4.70 (4.086, 5.307)		15.236 (119)	< 0.001
Post-intervention	10.73(3.47)