Table 1 Baseline demographics and characteristics of the study population
From: Common causes and characteristics of adverse drug reactions in older adults: a retrospective study
Total (N = 14,864) | < 65 years (N = 11,427) | ≥ 65 years (N = 3437) | P value | |
|---|---|---|---|---|
18,842 | 14,690 (78.0) | 4152 (22.0) | ||
Age | 49.5 ± 19.2 | 42.4 ± 15.2 | 74.6 ± 7.2 | < 0.001* |
Female | 10,897 (57.8) | 8496 (57.8) | 2401 (57.8) | 0.993† |
Causality | ||||
Certain | 2879 (15.3) | 2533 (17.2) | 346 (8.3) | < 0.001† |
Probable | 15,963 (84.7) | 12,157 (82.8) | 3806 (91.7) | < 0.001† |
Severity | ||||
Grade 1 | 1243 (6.6) | 957 (6.5) | 286 (6.9) | 0.392† |
Grade 2 | 16,606 (88.1) | 13,013 (88.6) | 3593 (86.5) | < 0.001† |
Grade 3 | 981 (5.2) | 714 (4.9) | 267 (6.4) | < 0.001† |
Grade 4 | 9 (0.0) | 6 (0.0) | 3 (0.1) | 0.423‡ |
Grade 5 | 3 (0.0) | 0 (0.0) | 3 (0.1) | 0.011‡ |