Table 3.
Observed rates of hospitalization for CAP for ITP inpatients in the derivation and validation cohorts
| Derivation cohort risk group (n = 1357)* | Validation cohort risk group (n = 511)* | |||||
|---|---|---|---|---|---|---|
| Low | Medium | High | Low | Medium | High | |
| Risk score | 0-3.5 | 4.5-8 | 9-10 | 0-3.5 | 4.5-8 | 9-10 |
| Patients without CAP | 1072 (79.0) | 150 (11.1) | 1 (1.9) | 373 (73.0) | 74 (14.5) | 2 (0.4) |
| Patients with CAP | 46 (3.4) | 77 (5.7) | 11 (5.9) | 14 (2.7) | 32 (6.3) | 16 (3.1) |
| Frequency of CAP | 46/1118 (4.1) | 77/227 (33.9) | 11/12 (91.7) | 14/387 (3.6) | 32/106 (30.2) | 16/18 (88.9) |
All data are no. (%) unless otherwise specified.
*
A total of 148 patients in the derivation cohort and 78 patients in the validation cohort had no score because of lack of data for initial ALC.