Relationship of multimorbidity with demographic variables
| Variable | Category | Multimorbidity | P value | |
| No n=11 307 (91.7%) | Yes n=1031 (8.4%) | |||
| Age (mean, SD) | 51.1 (12.8) | 58.6 (13.0) | <0.001* | |
| Male | 50.5 (13.6) | 61.1 (13.1) | <0.001* | |
| Female | 51.7 (12.0) | 56.5 (11.8) | <0.001* | |
| Age (n, %) | 35–40 | 3424 (97.2) | 100 (2.8) | <0.001* |
| 41–50 | 2842 (92.3) | 237 (7.7) | ||
| 51–60 | 2728 (90.6) | 288 (9.6) | ||
| >60 | 2313 (85.1) | 406 (14.9) | ||
| Sex (n, %) | Male | 5531 (92.3) | 464 (7.7) | 0.021* |
| Female | 5776 (91.1) | 567 (8.1) | ||
| Marital status (n, %) | Married | 9385 (92.2) | 789 (7.8) | <0.001* |
| Unmarried | 68 (93.6) | 5 (6.9) | ||
| Currently single | 1854 (88.7) | 237 (11.3) | ||
| Wealth quintile (n, %) | Poorest | 2354 (95.3) | 115 (4.7) | <0.001* |
| Second | 2358 (94.3) | 141 (5.6) | ||
| Middle | 2346 (93.1) | 175 (6.9) | ||
| Fourth | 2209 (90.1) | 244 (9.1) | ||
| Richest | 2040 (85.1) | 356 (14.9) | ||
| Educational status (n, %) | No education | 6992 (92.8) | 541 (7.2) | <0.001* |
| Primary education | 2397 (91.0) | 237 (9.0) | ||
| Secondary and higher | 1918 (88.3) | 253 (11.7) | ||
| BMI (mean, SD) | 21.67 (3.6) | 23.49 (4.3) | <0.001* | |
| BMI (n, %) | 18.5–25 kg/m2 | 7137 (92.9) | 548 (7.1) | <0.001* |
| <18.5 kg/m2 | 2083 (94.1) | 110 (5.0) | ||
| ≥25 kg/m2 | 1863 (84.1) | 350 (15.8) | ||
| Unhealthy lifestyle habit (tobacco, smokeless tobacco, extra salt intake) (n, %) | Yes | 10 653 (91.9) | 936 (8.1) | <0.001* |
| No | 654 (87.3) | 95 (12.7) | ||
| Average days of fish/meat intake (weekly) | Less than 4 times per week (n, %) | 2979 (93.1) | 191 (6.0) | <0.001* |
| 4 or more times per week (n, %) | 8328 (90.8) | 840 (9.2) | ||
| Average days of fruit intake (weekly) | Less than 4 times per week (n, %) | 10 536 (92.2) | 892 (7.8) | <0.001* |
| 4 or more times per week (n, %) | 771 (84.7) | 139 (15.3) | ||
| Physical activity | Not active (<1 hour) | 3154 (90.9) | 316 (9.1) | <0.001* |
| Less active (1 to less than 3 hours) | 7919 (91.8) | 709 (8.2) | ||
| Moderately to highly active (≥3 hours) | 234 (97.5) | 6 (2.5) | ||
| Sleeping time in last 24 hours | <8 hours | 3178 (90.3) | 340 (9.7) | <0.001* |
| ≥8 hours | 8129 (92.2) | 691 (7.8) | ||
*χ2 test significant p value ≤0.05.
BMI, body mass index.