Table 5.

Difference in mean duration of sore throat (in days, with 95% confidence intervals) of seven days of penicillin treatment versus placebo, and three days of penicillin treatment versus placebo

		Penicillin versus placebo
Throat cultures	No of patients	Seven days	Three days
All	156	0.0 (−0.9 to 0.9)	0.8 (−0.1 to 1.7)
Positive for group A streptococci	96	−0.5 (−1.5 to 0.6)	1.3 (0.2 to 2.4)
Other or negative	60	−0.2 (−2.0 to 1.6)	0.3 (−1.4 to 1.9)