Table 1.
Sample characteristics of the Catalan Health Interview Survey (2011–2012)
| n (%) Unweighted | n (%) Weighted | SEa | Design effect | |
|---|---|---|---|---|
| Gender | ||||
| Male | 3791 (50.2%) | 3877 (49.1%) | 0.20 | 0.19 |
| Female | 3763 (49.8%) | 4014 (50.9%) | 0.20 | 0.19 |
| Age group | ||||
| 18–44 years | 3527 (46.7%) | 3801 (48.2%) | 0.45 | 0.62 |
| 45–64 years | 2259 (29.9%) | 2436 (30.9%) | 0.76 | 2.08 |
| 65–74 years | 753 (10.0%) | 784 (9.9%) | 0.33 | 0.92 |
| 75 years and over | 1015 (13.4%) | 870 (11.0%) | 0.29 | 0.53 |
| Studies level | ||||
| Primary or less | 2015 (26.7%) | 1993 (25.3%) | 2.19 | 18.52 |
| Secondary | 4179 (55.4%) | 4345 (55.1%) | 1.65 | 8.31 |
| University or more | 1356 (18.0%) | 1548 (19.6%) | 3.44 | 60.70 |
| Social class | ||||
| I-II (managerial and free-lance professionals) | 1312 (18.0%) | 1485 (19.5%) | 2.83 | 40.90 |
| III (skilled non-manual occupations) | 2226 (30.6%) | 2390 (31.3%) | 2.36 | 19.84 |
| IV (skilled manual workers) | 3067 (42.2%) | 3052 (40.0%) | 4.71 | 68.95 |
| V (non-skilled manual workers) | 671 (9.2%) | 701 (9.2%) | 0.59 | 3.18 |
| Perceived health | ||||
| Excellent | 564 (7.5%) | 636 (8.1%) | 0.82 | 7.41 |
| Very good | 1895 (25.1%) | 2067 (26.2%) | 1.64 | 10.84 |
| Good | 3388 (44.9%) | 3452 (43.7%) | 2.08 | 13.25 |
| Fair | 1356 (18.0%) | 1374 (17.4%) | 0.48 | 1.20 |
| Poor | 351 (4.7%) | 362 (4.6%) | 0.41 | 2.82 |
| Activity limitation | ||||
| Yes, seriously affected | 398 (5.3%) | 397 (5.0%) | 0.33 | 1.60 |
| Yes, limited but not seriously | 762 (10.1%) | 786 (10.0%) | 0.63 | 3.33 |
| No | 6394 (84.6%) | 6708 (85.0%) | 0.85 | 4.19 |
| Number of chronic physical conditions | ||||
| None | 1690 (22.4%) | 1783 (22.6%) | 1.60 | 11.21 |
| 1 condition | 1183 (15.7%) | 1256 (15.9%) | 0.55 | 1.75 |
| 2 conditions | 981 (13.0%) | 1017 (12.9%) | 0.50 | 1.66 |
| 3 or 4 conditions | 1432 (19.0%) | 1526 (19.3%) | 0.47 | 1.07 |
| 5 or more conditions | 2268 (30.0%) | 2308 (29.2%) | 1.36 | 6.68 |
| VAS (mean, SD) | 7554 | 73.19 (19.21) | 0.42 | 5.21 |
aStandard error was estimated by the Taylor series method