Table 1 Basic characteristics of the study participants from 2002 to 2013
Case (n = 600) | Control | ||||
|---|---|---|---|---|---|
Non-Matched (n = 25,364) | P | Matched (n = 1800) | P | ||
Gender | |||||
Female | 322 (53.67%) | 15,508 (61.14%) | 0.2051 | 966 (53.67%) | 1.0000 |
Male | 278 (46.33%) | 9256 (36.49%) | 834 (46.33%) | ||
Age in 2008, Mean ± SD | 62.37 ± 16.17 | 56.98 ± 19.26 | <.0001 | 62.51 ± 16.13 | 0.9376 |
Low income | |||||
Yes | 349 (58.17%) | 15,727 (62.01%) | 0.5571 | 1022 (56.78%) | 0.9208 |
No | 251 (41.83%) | 9637 (37.99%) | 778 (43.22%) | ||
Other operation | |||||
Other CVD system operation | 555 (92.5%) | 3365 (13.27%) | <.0001 | 341 (18.94%) | <.0001 |
Nervous system operation | 24 (4.00%) | 813 (3.21%) | 0.0002 | 75 (4.17%) | 0.5781 |
Digestives system operation | 208 (34.67%) | 4382 (17.28%) | <.0001 | 363 (20.17%) | <.0001 |
Breath system operation | 118 (19.67%) | 1070 (4.22%) | <.0001 | 91 (5.06%) | <.0001 |
Urinary system operation | 37 (6.17%) | 1119 (4.41%) | <.0001 | 91 (5.06%) | 0.0041 |
Hemodialysis | 22 (3.67%) | 455 (1.79%) | <.0001 | 48 (2.67%) | 0.2074 |
Comorbidity | |||||
Hypertension | 408 (68.00%) | 14,430 (56.89%) | 0.0513 | 1237 (68.72%) | 0.8323 |
Hyperlipidemia | 221 (36.83%) | 10,013 (39.48%) | 0.6667 | 834 (46.33%) | 0.3355 |
Diabetes | 198 (33.00%) | 7498 (29.56%) | 0.2915 | 649 (36.06%) | 0.5501 |
COPD | 225 (37.5%) | 8205 (32.35%) | 0.2259 | 674 (37.44%) | 0.9707 |
Emphysema | 7 (1.17%) | 380 (1.50%) | <.0001 | 34 (1.89%) | <.0001 |
Heart failure | 413 (68.83%) | 5496 (21.67%) | <.0001 | 469 (26.06%) | 0.0983 |
Cardiac dysrhythmias | 372 (62%) | 12,586 (49.62%) | 0.3405 | 903 (50.17%) | 0.3915 |
Anxiety | 241 (40.17%) | 14,800 (58.35%) | 0.8703 | 1044 (58.00%) | 0.8615 |
CKD | 69 (11.5%) | 2255 (8.89%) | <.0001 | 217 (12.06%) | 0.5600 |
Sleep disturbances | 280 (46.67%) | 14,570 (57.44%) | 0.7280 | 1037 (57.61%) | 0.7544 |
Anemia | 102 (17.0%) | 4370 (17.23%) | 0.7157 | 259 (14.39%) | 0.1213 |