Cases of Acute Appendicitis in Ontario (Apr. 1,1991, to Mar. 31, 1998) According to Gender, Age and Perforation Status
| Sex/age | Overall | Without perforation | With perforation |
|---|---|---|---|
| Patients, no. (and %) | 65 675 (100) | 44 322 (67) | 21 353 (33) |
| Female | 27 532 (42) | 18 703 (42) | 8 829 (41) |
| Male | 38 143 (58) | 25 619 (58) | 12 524 (59) |
| Age, yr | |||
| Mean (and SD) | 29.6 (17.6) | 27.2 (15.1) | 34.6 (20.9) |
| Median (and IQ) | 26 (16–40) | 24 (16–36) | 33 (16–48) |
SD = standard deviation, IQ = interquartile range.