Table 1 Distribution of socio-demographic characteristics of cases and controls
From: Years of sunlight exposure and cataract: a case-control study in a Mediterranean population
Cases | Controls | |||
|---|---|---|---|---|
Variables | n | % | n | % |
All | 343 | 100.0 | 334 | 100.0 |
Gender: | ||||
Male | 149 | 43.4 | 133 | 39.8 |
Female | 193 | 56.3 | 201 | 60.2 |
Unknown | 1 | 0.3 | 0 | 0.0 |
Age group (years ): | ||||
55–59 | 40 | 11.7 | 40 | 12.0 |
60–64 | 82 | 23.9 | 84 | 25.1 |
65–69 | 106 | 30.9 | 98 | 29.3 |
70–74 | 114 | 33.2 | 112 | 33.6 |
Unknown | 1 | 0.3 | 0 | 0.0 |
Marital status: | ||||
Single | 21 | 6.1 | 13 | 3.9 |
Married/in couple | 252 | 73.5 | 253 | 75.8 |
Widowed | 63 | 18.4 | 63 | 18.8 |
Divorced | 7 | 2.0 | 5 | 1.5 |
Unknown | 0 | 0 | 0 | 0 |
Occupational situation: | ||||
Full/part time employed | 18 | 5.2 | 19 | 5.7 |
Unemployed | 12 | 3.5 | 11 | 3.3 |
Housewife | 168 | 49.0 | 174 | 52.1 |
Retired/others | 143 | 41.7 | 130 | 38.9 |
Unknown | 2 | 0.6 | 0 | 0.0 |
Education | ||||
Illiterate | 80 | 23.4 | 52 | 15.6 |
Incomplete or complete primary school | 213 | 62.0 | 204 | 61.1 |
Secondary/junior high school | 40 | 11.7 | 55 | 16.4 |
Senior high school and University | 10 | 2.9 | 23 | 6.9 |