Table 1. Influenza vaccination coverage rates according to the characteristics of respondents in 2012 KNHANES.
| Parameters | Unweighted frequency (estimated proportion %) | P | |
|---|---|---|---|
| Vaccinated (n = 1,458) | Unvaccinated (n = 1,766) | ||
| Gender | < 0.001 | ||
| Male | 560 (35.3) | 787 (64.7) | |
| Female | 898 (44.7) | 979 (55.3) | |
| Age | < 0.001 | ||
| 40-64 | 680 (28.0) | 1531 (72.0) | |
| ≥ 65 | 778 (78.3) | 235 (21.7) | |
| Residential neighborhood | 0.005 | ||
| Metropolis | 633 (36.1) | 848 (63.9) | |
| Others | 825 (43.7) | 918 (56.3) | |
| Administrative areas | 0.016 | ||
| Dong | 1,097 (38.0) | 1,420 (62.0) | |
| Eup/Myeon | 361 (47.6) | 346 (52.4) | |
| Marital status | 0.075 | ||
| Married | 1,447 (40.6) | 1,737 (59.4) | |
| Unmarried | 10 (22.6) | 29 (77.4) | |
| Education level | < 0.001 | ||
| ≤ Middle school | 902 (55.7) | 627 (44.3) | |
| High school | 351 (30.1) | 638 (69.9) | |
| ≥ College | 202 (24.9) | 496 (75.1) | |
| Household income level | < 0.001 | ||
| Low | 431 (62.5) | 223 (37.5) | |
| Middle low | 402 (44.3) | 419 (55.7) | |
| Middle high | 296 (32.7) | 477 (67.3) | |
| High | 312 (28.2) | 624 (71.8) | |
| Smoking | < 0.001 | ||
| Current or former smokers | 528 (35.6) | 737 (64.4) | |
| Nonsmokers | 930 (44.1) | 1,029 (55.9) | |
| Self-perceived health status | < 0.001 | ||
| Average or better | 1,086 (37.4) | 1,485 (62.6) | |
| Poor | 371 (51.8) | 281 (48.2) | |
| Regular health check-up | 0.001 | ||
| Yes | 1,100 (43.1) | 1,177 (56.9) | |
| No | 357 (34.5) | 589 (65.5) | |
| Restricted activity | < 0.001 | ||
| Yes | 210 (58.4) | 122 (41.6) | |
| No | 1,245 (38.1) | 1,643 (61.9) | |
| Chronic diseases | |||
| Hypertension | < 0.001 | ||
| Yes | 627 (57.8) | 394 (42.2) | |
| No | 831 (33.4) | 1,372 (66.6) | |
| Diabetes | < 0.001 | ||
| Yes | 214 (57.9) | 134 (42.1) | |
| No | 1,244 (38.4) | 1,632 (61.6) | |
| Dyslipidemia | < 0.001 | ||
| Yes | 348 (57.0) | 204 (43.0) | |
| No | 1,110 (37.4) | 1,562 (62.6) | |
| Myocardial infarction or angina | < 0.001 | ||
| Yes | 95 (68.2) | 41 (31.8) | |
| No | 1,363 (39.2) | 1,725 (60.8) | |
| Pulmonary tuberculosis | 0.188 | ||
| Yes | 77 (33.7) | 101 (66.3) | |
| No | 1,381 (40.6) | 1,665 (59.4) | |
| Asthma | 0.042 | ||
| Yes | 80 (50.9) | 53 (49.1) | |
| No | 1,378 (39.8) | 1,713 (60.2) | |
| Chronic renal failure | 0.033 | ||
| Yes | 18 (64.3) | 10 (35.7) | |
| No | 1,440 (40.1) | 1,756 (59.9) | |
| Cancer | 0.005 | ||
| Yes | 101 (55.1) | 65 (44.9) | |
| No | 1,357 (39.6) | 1,701 (60.4) | |
| COPD | 0.035 | ||
| Yes | 14 (69.0) | 5 (31.0) | |
| No | 1,443 (40.1) | 1,760 (59.9) | |
| Pulmonary function | < 0.001 | ||
| Normal | 996 (37.1) | 1,380 (62.9) | |
| Restrictive | 169 (43.4) | 177 (56.6) | |
| Obstructive | 293 (53.8) | 209 (46.2) | |
KNHANES, Korean National Health and Nutrition Survey; COPD, chronic obstructive pulmonary diseases.