Table 1.

Patients and length of hospitalization, subdivided according to ADR appearance and sex

	All (n = 1023)	Women (n = 520)	Men (n = 503)
Patients without ADR (% [95% CI])	65.4 (60.9–66.7)	63.1 (58.9–67.2)	67.8 (63.7–71.9)
Days of hospital stay, mean (95% CI)	12.6 (11.9–13.3)	12.6 (11.5–13.7)	12.6 (11.6–13.6)
Patients with ADR as cause of hospitalization (% [95% CI])	11.1 (9.2–13.0)	12.1 (9.3–14.9)	10.1 (7.5–12.8)
Days of hospital stay, mean (95% CI)	13.6 (11.9–15.3)	15.2 (12.6–17.8)	11.5 (9.6–13.4)
Patients with ADR during hospitalization (% [95% CI])	25.0 (22.4–27.7)	27.1 (23.3–30.9)	22.9 (19.2–26.5)
Days of hospital stay, mean (95% CI)	18.7 (17.2–20.1)	18.7 (16.8–20.6)	18.7 (16.5–20.9)

Abbreviations: ADR, adverse drug reaction; CI, confidence interval; n, number.