Table 2.
Diarrhea-related hospitalizations (all diagnoses) among children younger than five years of age in Quebec, April 1, 1985 to March 31, 1998 by civil year
| Season | ||||
|---|---|---|---|---|
| Civil year | Month of onset | Duration (months) | Peak season | Epidemic intensity |
| 1986 | January | 5 | March-April | 1.891 |
| 1987 | January | 6 | March-April | 1.553 |
| 1988 | January | 5 | Feb-March | 1.578 |
| 1989 | March | 5 | Nov-Dec | 1.752 |
| 1990 | January | 5 | Feb-March | 2.061 |
| 1991 | April | 5 | April-May | 1.287 |
| 1992 | January | 5 | Feb-March | 1.826 |
| 1993 | February | 6 | April-May | 1.425 |
| 1994 | January | 5 | Feb-March | 1.808 |
| 1995 | January | 6 | April-May | 1.529 |
| 1996 | January | 5 | March-April | 2.157 |
| 1997 | February | 5 | April-May | 1.758 |
Onset of rotavirus season – month in which detections first exceeded the monthly mean; Duration of rotavirus season – number of months during which detection exceeded the mean. Peak season – two consecutive months with the highest number of detections; Epidemic intensity – defined ratio of the number of detections for the peak month to the number of detections for the mean. Dec December; Feb February; Nov November