| | | Total (N = 56,710) | AP (N = 2,885) | Non-AP (N = 53,825) | value |
| | Age, mean (SD), yrs | 68.0 (18.0) | 79.1 (9.6) | 67.4 (18.2) | <0.001 | | Age groups | | | | <0.001 | | 18–64 | 21,105 (37.2) | 296 (10.3) | 20,890 (38.7) | | | 65–79 | 17,285 (30.5) | 1,024 (35.5) | 16,261 (30.2) | | | ≥80 | 18,320 (32.3) | 1,565 (54.2) | 16,755 (31.1) | | | Males | 32,387 (57.1) | 1,892 (65.6) | 30,495 (56.7) | <0.001 | | Charlson Index, mean (SD) | 3.3 (2.9) | 4.2 (2.6) | 3.2 (2.9) | <0.001 | | Comorbidities | | Cerebrovascular disease | 33,502 (59.1) | 2,524 (87.5) | 30,978 (57.6) | <0.001 | | Dementia | 13,655 (24.1) | 1,311 (45.4) | 12,344 (22.9) | <0.001 | | Gastroesophageal reflux | 9,292 (16.4) | 546 (18.9) | 8,746 (16.3) | <0.001 | | Vomiting | 2,225 (3.9) | 185 (6.4) | 2,040 (3.8) | <0.001 | | Parkinson | 2,157 (3.8) | 268 (9.3) | 1,889 (3.5) | <0.001 | | Epilepsy | 1,526 (2.7) | 240 (8.3) | 1,286 (2.4) | <0.001 |
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