Table 4 Seasonal Distribution of Ruptures of Aneurisms in Patients Attended for HSA in Asenjo by Age and Sex from January 1995 to December 1996
From: Aneurismal subarachnoid hemorrhage in a Chilean population, with emphasis on risk factors
MEN | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
AUTUMN | WINTER | SPRING | SUMMER | TOTAL | ||||||
AGE | N | % | N | % | N | % | N | % | N | % |
< 20 | 0 | 0.00 | 1 | 50.00 | 0 | 0.00 | 1 | 50.00 | 2 | 50.00 |
20.1 - 30 | 1 | 25.00 | 0 | 0.00 | 2 | 50.00 | 1 | 25.00 | 4 | 33.33 |
30.1 - 40 | 2 | 25.00 | 1 | 12.50 | 2 | 25.00 | 3 | 37.50 | 8 | 38.10 |
40.1 - 50 | 3 | 17.65 | 3 | 17.65 | 7 | 41.18 | 4 | 23.53 | 17 | 30.91 |
50.1 - 60 | 2 | 11.76 | 3 | 17.65 | 10 | 58.82 | 2 | 11.76 | 17 | 29.82 |
60.1 - 70 | 2 | 33.33 | 1 | 16.67 | 2 | 33.33 | 1 | 16.67 | 6 | 14.29 |
70.1 - 80 | 1 | 33.33 | 0 | 0.00 | 0 | 0.00 | 2 | 66.67 | 3 | 16.67 |
TOTAL | 11 | 19.30 | 9 | 15.79 | 23 | 40.35 | 14 | 24.56 | 57 | 27.27 |
χ 2 cal = 28.61; P v = 0.053 | ||||||||||
WOMEN | ||||||||||
AUTUMN | WINTER | SPRING | SUMMER | TOTAL | ||||||
AGE | n | % | n | % | n | % | n | % | N | % |
< 20 | 2 | 100.00 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 | 2 | 50.00 |
20.1 - 30 | 5 | 62.50 | 0 | 0.00 | 2 | 25.00 | 1 | 12.50 | 8 | 66.67 |
30.1 - 40 | 5 | 38.46 | 1 | 7.69 | 7 | 53.85 | 0 | 0.00 | 13 | 61.90 |
40.1 - 50 | 12 | 31.58 | 11 | 28.95 | 14 | 36.84 | 1 | 2.63 | 38 | 69.09 |
50.1 - 60 | 8 | 20.00 | 9 | 22.50 | 13 | 32.50 | 10 | 25.00 | 40 | 70.18 |
60.1 - 70 | 9 | 25.00 | 5 | 13.89 | 11 | 30.56 | 11 | 30.56 | 36 | 85.71 |
70.1 - 80 | 3 | 20.00 | 3 | 20.00 | 4 | 26.67 | 5 | 33.33 | 15 | 83.33 |
TOTAL | 44 | 28.95 | 29 | 19.08 | 51 | 33.55 | 28 | 18.42 | 152 | 72.73 |
χ 2 cal = 30.87; P v = 0.03 | ||||||||||
TOTAL (♂♀) | 55 | 26.31 | 38 | 18.18 | 74 | 35.4 | 42 | 20.09 | 209 | 100 |
χ 2 cal = 15.1; P v = 0.0017 | ||||||||||