Table 3.

Incidence rate of lung edema.

	Cefpodoxime & Chlorpheniramine	Cefpodoxime & No Chlorpheniramine	No Cefpodoxime & Chlorpheniramine
Patients	1,628	54,043	203,897
Person-years	17,137	597,351	2,217,300
Outcomes	26	194	1028
Incidence rate per 100,000 PY1	151.72	32.48	46.36
95% CI2	99.11 - 222.30	28.07 - 37.38	43.57 - 49.29

¹PY: person-years.

²CI: confidence interval.