Table 1.
| Characteristic | Total population (N=147,806) | Derivation cohort (n= 92,071) | Validation cohort (n= 55,735) |
|---|---|---|---|
| Age (y) | 63 (50-75) | 65 (51-77) | 60 (47-72) |
| Men | 71,175 (48.2) | 44,090 (47.9) | 27,085 (48.6) |
| Country | |||
| United States | 89,268 (60.4) | 42,306 (45.9) | 46,962 (84.3) |
| Switzerland | 42,739 (28.9) | 33,966 (36.9) | 8773 (15.7) |
| Israel | 15,799 (10.7) | 15,799 (17.2) | 0 (0) |
| Description of multimorbidity | |||
| Number of health conditions | 9 (5-13) | 8 (4-12) | 10 (6-14) |
| Number of chronic health conditions | 5 (3-7) | 4 (2-7) | 5 (3-8) |
| Number of CCS categories | 6 (4-9) | 6 (3-9) | 7 (5-10) |
| Number of body system categories | 4 (3-6) | 4 (2-6) | 5 (3-7) |
| Deyo-Charlson Comorbidity Index | 2 (0-3) | 1 (0-3) | 2 (0-3) |
| Elixhauser-van Walraven Comorbidity Index | 5 (0-12) | 5 (0-11) | 5 (0-12) |
| Hospitalization characteristics | |||
| Length of stay (d) | 4 (3-8) | 4 (3-5) | 4 (3-8) |
| Number of admissions in the past year | 0 (0-2) | 0 (0-2) | 0 (0-2) |
a
CCS = Clinical Classification Software; IQR = interquartile range.
b
Data are presented as median (IQR) or No. (percentage) of patients.