Table 3.

Mean duration of absence from school in days (with 95% confidence intervals) in the three treatment groups

	Duration of penicillin treatment
Treatment group	0 days	3 days	7 days
All (n=156)	2.4 (1.8 to 3.0)	2.3 (1.7 to 2.9)	2.8 (2.2 to 3.5)
Children with group A streptococci (n=96)	2.2 (1.6 to 2.8)	2.2 (1.3 to 3.0)	2.5 (1.8 to 3.1)
Children without group A streptococci (n=60)	3.2 (1.6 to 4.7)	2.4 (1.6 to 3.3)	3.3 (2.0 to 4.6)