Table 2.

Infection incidence during study period

Outcome (P-value)	Treatment arm	n at risk	n	%	95% confidence interval
Severe bacterial infections during first 2 months (P = 0.218)	C	64	8	12.5	5.6	–	23.2
	T	74	5	6.8	2.2	–	15.1
	O	63	10	15.9	7.9	–	27.3
Any infection during first 2 months (P = 0.954)	C	64	13	20.3	11.3	–	32.2
	T	74	17	23.0	14.0	–	34.2
	O	63	14	22.2	12.7	–	34.5
Severe infections during the first month after prophylaxis (P = 0.799)	C	64	2	3.1	0.0	–	7.4
	T	74	2	2.7	0.0	–	6.4
	O	63	3	4.8	0.0	–	10.0

Abbreviation: C, ciprofloxacin; O, observation; T, trimethoprim-sulfamethoxyzole.