Table 1 Distribution of demographic and socio-economic variables among cases and controls (n = 400)
Variable | Cases 200 (%) | Controls 200 (%) | P value |
|---|---|---|---|
Age | |||
18-40 years | 26 (18%) | 24 (12%) | > 0.05 |
41-65 years | 143 (72.5%) | 140 (70%) | 0.96 |
66 years or more | 31 (15.5%) | 36 (18%) | |
Median age (in years) | 58.5 ± 11.8 | 57 ± 11.7 | 0.95 |
Gender | |||
Male | 150 (75%) | 150 (75%) | |
Female | 50 (25%) | 50 (25%) | 1 |
Number of material possessions | |||
One to two | 0 (0%) | 49 (12.3) | 0.00001 |
Three to four | 19 (4.8%) | 104 (26%) | |
Five to eight | 111 (27.7%) | 47 (11.8%) | |
More than nine | 70 (17.4%) | 0 (6.8%) | |
Education | |||
Less than middle school | 128 (64%) | 187 (93.5%) | 0.0003 |
More than middle school | 72 (36%) | 13 (6.5%) | |
Residence | |||
Rural | 156 (78%) | 200 (100%) | 0.000004 |
Urban | 44 (22%) | 00 (0.00%) | |