Characteristics of study participants aged 65–94 years stratified by multimorbidity and non-multimorbidity (n=916 619, Catalonia, 2012)
| Variables* | Multimorbidity (n=853 085) | Non-multimorbidity (n=63 534) | All (n=916 619) |
| Sex, women, n (%) | 496 294 (58.2) | 32 837 (51.7) | 529 131 (57.7) |
| Age, mean (SD) | 75.6 (7.4) | 73.2 (7.3) | 75.4 (7.4) |
| Age (categories), n (%) | |||
| (65, 70) | 225 514 (26.4) | 26 664 (42.0) | 252 178 (27.5) |
| (70, 80) | 370 356 (43.4) | 24 230 (38.1) | 394 586 (43.0) |
| (80, 90) | 224 143 (26.3) | 10 601 (16.7) | 234 744 (25.6) |
| ≥90 | 33 072 (3.9) | 2039 (3.2) | 35 111 (3.8) |
| MEDEA index† | |||
| Q1 | 130 894 (16.5) | 13 897 (23.4) | 144 791 (17.0) |
| Q2 | 126 537 (16.0) | 9894 (16.6) | 136 431 (16.0) |
| Q3 | 129 246 (16.3) | 8976 (15.1) | 138 222 (16.2) |
| Q4 | 125 322 (15.8) | 7666 (12.9) | 132 988 (15.6) |
| Q5 | 110 916 (14.0) | 5967 (10.0) | 116 883 (13.7) |
| Rural | 169 190 (21.4) | 13 059 (22.0) | 182 249 (21.4) |
| Number of chronic diseases, median (IQR) | 6.0 (4.0; 8.0) | 1.0 (0.0; 1.0) | 6.0 (4.0; 8.0) |
| Number of chronic diseases (categories), n (%) | |||
| 0 | 0 (0.0) | 25 380 (39.9) | 25 380 (2.8) |
| 1 | 0 (0.0) | 38 154 (60.1) | 38 154 (4.2) |
| (2, 5) | 268 836 (31.5) | 0 (0.0) | 268 836 (29.3) |
| (5, 10) | 463 709 (54.4) | 0 (0.0) | 463 709 (50.6) |
| ≥10 | 120 540 (14.1) | 0 (0.0) | 120 540 (13.2) |
| Number of drugs, median (IQR) | 5.0 (3.0; 8.0) | 0.0 (0.0; 1.0) | 5.0 (2.0; 8.0) |
| Number of drugs (categories) | |||
| 0 | 72 557 (8.5) | 40 811 (64.2) | 113 368 (12.4) |
| 1 | 48 704 (5.7) | 8378 (13.2) | 57 082 (6.2) |
| (2, 5) | 247 095 (29.0) | 11 572 (18.2) | 258 667 (28.2) |
| (5, 10) | 360 030 (42.2) | 2651 (4.2) | 362 681 (39.6) |
| ≥10 | 124 699 (14.6) | 122 (0.2) | 124 821 (13.6) |
| Number of visits, median (IQR) | 10.0 (6.0; 17.0) | 1.0 (0.0; 4.0) | 9.0 (5.0; 16.0) |
| Number of visits 2012 (categories), n (%) | |||
| 0 | 24 543 (2.9) | 23 402 (36.8) | 47 945 (5.2) |
| 1 | 24 281 (2.8) | 9603 (15.1) | 33 884 (3.7) |
| (2, 5) | 114 198 (13.4) | 16 241 (25.6) | 130 439 (14.2) |
| (5, 10) | 239 181 (28.0) | 10 168 (16.0) | 249 349 (27.2) |
| ≥10 | 450 882 (52.9) | 4120 (6.5) | 455 002 (49.6) |
*All comparisons between variables in multimorbidity and non-multimorbidity showed p<0.001.
†MEDEA index goes from 1 (least deprived) to 5 (most deprived), in this variable n=851 564.