Table 2 General characteristics of participants
Variables | Urban | Rural | ||||
|---|---|---|---|---|---|---|
2019 mean ± SD or number (%) | 2020 mean ± SD or number (%) | P-value | 2019 mean ± SD or number (%) | 2020 mean ± SD or number (%) | P-value | |
Age | 52.14 ± 16.25 | 52.26 ± 15.75 | 0.459 | 50.93 ± 14.96 | 51.50 ± 14.80 |  < 0.001 |
SES category | Â | Â | 1.00 | Â | Â | 1.00 |
 SES 1 | 4607 (25.0) | 4562 (25.0) |  | 4974 (25.0) | 4826 (25.0) |  |
 SES 2 | 4607 (25.0) | 4563 (25.0) |  | 4974 (25.0) | 4827 (25.0) |  |
 SES 3 | 4608 (25.0) | 4563 (25.0) |  | 4975 (25.0) | 4827 (25.0) |  |
 SES 4 | 4607 (25.0) | 4562 (25.0) |  | 4974 (25.0) | 4826 (25.0) |  |
Literacy |  |  |  < 0.001 |  |  | 0.199 |
 Uneducated | 12,384 (67.2) | 12,726 (69.7) |  | 16,566 (83.3) | 16,167 (83.7) |  |
 Primary or higher education | 6045 (32.8) | 5524 (30.3) |  | 3331 (16.7) | 3139 (16.3) |  |
Marital status | Â | Â | 0.364 | Â | Â | 0.013 |
 Married | 15,385 (83.5) | 15,151 (83.0) |  | 16,926 (85.1) | 16,221 (84.0) |  |
 Widow | 2629 (14.3) | 2640 (14.5) |  | 2345 (11.8) | 2421 (12.5) |  |
 Single | 192 (1.0) | 215 (1.2) |  | 350 (1.8) | 399 (2.1) |  |
 Divorced | 223 (1.2) | 244 (1.3) |  | 276 (1.4) | 265 (1.4) |  |