Table 2.
Positive predictive values of cancer-related admissions categorized by indication for admission
| Admission indication | CCS category of primary diagnosis | ICD-9 code | Positive predictive value (95% confidence interval) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Malignancy N = 47,853 n (%) | Chemotherapy toxicity N = 74,955 n (%) | Infection N = 30,169 n (%) | Non-infectious toxicityN = 40,725 n (%) | Other N = 9,293 n (%) | Reviewed | True + | False + | ||
| Intent-chemotherapy | 6,985 (14.6%) | 67,330 (89.8%) | 1,428 (4.7%) | 1,824 (4.5%) | 224 (2.4%) | 54,125# | 53,932 | 193 | 99.6% (99.6–99.7%) |
| N = 77,791 | |||||||||
| Intent-procedure | 20,188 (42.2%) | 1,585 (2.1%) | 3,968 (13.2%) | 3,258 (8.0%) | 1,836 (19.8%) | 45,855^ | 45,249 | 606 | 98.7% (98.6–98.8%) |
| N = 30,835 | |||||||||
| Intent-infection | 3,017 (6.3%) | 249 (<1%) | 23,468 (77.8%) | 3,646 (9.0%) | - | 28,887 | 28,255 | 632 | 97.8% (98.6–97.9%) |
| N = 30,380 | |||||||||
| Non-infection toxicities | 9,607 (20.1%) | 499 (<1%) | 1,305 (4.3%) | 31,997 (78.6%) | - | 39,485 | 38,565 | 920 | 97.7% (97.5–97.8%) |
| N = 43,408 | |||||||||
| Undefined | 8,056 (16.8%) | 5,292 (7.1%) | - | - | 7,233 (77.8%) | ||||
| N = 20,581 | |||||||||
#Admissions associated with a date of chemotherapy delivery.
^Procedures.