Table 1.
Characteristics of study population and weighted prevalence of multimorbidity
| N (%) | Weighted prevalence* | |||
| No illness | One illness | Multimorbidities (≥2) | ||
| Total | 19 656 (100) | 22.9% | 22.8% | 54.3% |
| Age (year) | ||||
| 45–54 | 6792 (34.6) | 35.0% | 26.3% | 38.7% |
| 55–64 | 6604 (33.6) | 19.3% | 23.2% | 57.6% |
| 65–74 | 4310 (21.9) | 13.7% | 19.1% | 67.1% |
| ≥75 | 1950 (9.9) | 13.5% | 17.6% | 68.9% |
| Sex | ||||
| Male | 9573 (48.7) | 25.7% | 23.9% | 50.4% |
| Female | 10 083 (51.3) | 20.3% | 21.7% | 58.0% |
| Educational level | ||||
| Illiterate | 4985 (25.4) | 15.8% | 22.5% | 61.7% |
| Part of primary school | 3252 (16.6) | 14.8% | 20.0% | 65.2% |
| Primary school | 5352 (27.3) | 32.7% | 22.8% | 44.5% |
| Junior middle school | 3804 (19.4) | 21.4% | 24.0% | 54.5% |
| Senior middle school or above | 2237 (11.4) | 25.9% | 24.4% | 49.7% |
| Unknown† | 26 (0.1) | |||
| Marital status | ||||
| Not in marriage | 2666 (13.6) | 15.6% | 17.8% | 66.6% |
| Married | 16 989 (86.4) | 24.2% | 23.6% | 52.2% |
| Unknown† | 1 (0.0) | |||
| Smoking | ||||
| Current | 5568 (28.4) | 25.6% | 24.3% | 50.1% |
| Former | 3112 (15.9) | 17.8% | 20.6% | 61.5% |
| Never | 10 929 (55.7) | 22.8% | 22.7% | 54.5% |
| Unknown† | 47 (0.2) | |||
| Alcohol consumption | ||||
| Current | 6947 (35.5) | 27.7% | 24.8% | 47.6% |
| Former | 2213 (11.3) | 13.8% | 19.5% | 66.7% |
| Never | 10 427 (53.2) | 21.3% | 22.1% | 56.6% |
| Unknown† | 69 (0.4) | |||
| Health insurance status | ||||
| Covered | 15 406 (90.9) | 16.2% | 22.0% | 61.7% |
| Not covered | 1549 (9.1) | 20.3% | 21.9% | 57.7% |
| Unknown† | 2701 (13.7) | |||
| Urbanity | ||||
| Urban | 7908 (40.2) | 26.7% | 23.0% | 50.4% |
| Rural | 11 748 (59.8) | 19.2% | 22.6% | 58.3% |
*Individual weight with household and individual non-response adjustment was used to calculate the weighted prevalence.
†‘Unknown’ means that no response from the interviewed participants was recorded for the question.