Table 2. Demographic status and comorbidity at baseline in hemodialysis patients with and without influenza vaccination.
| Influenza vaccine | p-value | ||
| Yes (n = 831) | No (n = 3187) | ||
| Age, mean ± SD | 70.2±9.96 | 59.4±14.5 | <0.0001# |
| Stratify age | |||
| 18–39 | 8(0.96) | 284(8.91) | <0.0001 |
| 40–64 | 127(15.3) | 1714(53.8) | |
| 65+ | 696(83.8) | 1189(37.3) | |
| Gender | |||
| Women | 413(49.7) | 1635(51.3) | 0.41 |
| Men | 418(50.3) | 1552(48.7) | |
| Comorbidity | |||
| CAD | 401(48.3) | 997(31.3) | <0.0001 |
| CHF | 253(30.5) | 672(21.1) | <0.0001 |
| Cancer | 82(9.87) | 236(7.41) | 0.02 |
| Hyperlipidemia | 466(56.1) | 1342(42.1) | <0.0001 |
| Hypertension | 776(93.4) | 2795(87.7) | <0.0001 |
| Diabetes | 552(66.4) | 1694(53.2) | <0.0001 |
| Atrial fibrillation | 26(3.13) | 67(2.10) | 0.08 |
| Chronic hepatitis | 323(38.9) | 874(27.4) | <0.0001 |
| COPD | 356(42.8) | 917(28.8) | <0.0001 |
Abbreviations: CAD, coronary artery disease; CHF, congestive heart failure; COPD; chronic obstructive pulmonary disease
Chi-square test; #: Two-sample t-test