Korean Journal of Family Practice

Table. 1.

Influenza vaccination rates, stratified by age groups

Characteristics Total (n=9,825) Age 19–39 y (n=2,759) Age 40–64 y (n=4,593) Age ≥65 y (n=2,473)
All
N (%a)
Vaccinated
%a (SE)
P-value All
N (%a)
Vaccinated
%a (SE)
P-value All
N (%a)
Vaccinated
%a (SE)
P-value All
N (%a)
Vaccinated
%a (SE)
P-value
Sex <0.001* <0.001* <0.001* <0.001*
Male 4,161 (48.8) 28.0 (0.8) 1,162 (50.7) 20.0 (1.3) 1,900 (49.0) 21.6 (1.0) 1,099 (43.2) 75.9 (1.5)
Female 5,664 (51.2) 38.8 (0.9) 1,597 (49.3) 27.9 (1.3) 2,693 (51.0) 31.1 (1.0) 1,374 (56.8) 85.4 (1.2)
Education <0.001* <0.001* <0.001* 0.090
Elementary or lower 2,263 (15.8) 62.6 (1.4) 18 (0.6) 22.4 (10.4) 762 (13.7) 35.1 (2.2) 1,483 (61.6) 83.1 (1.3)
Middle 1,073 (9.0) 40.4 (1.9) 47 (1.6) 9.4 (3.4) 684 (13.8) 32.1 (2.1) 342 (13.0) 78.8 (2.8)
High 3,300 (38.0) 25.2 (0.9) 1,144 (44.0) 20.1 (1.5) 1,735 (39.8) 22.9 (1.1) 421 (16.7) 77.8 (2.3)
College and higher 3,189 (37.2) 28.1 (1.0) 1,550 (53.8) 27.5 (1.3) 1,412 (32.7) 24.7 (1.4) 227 (8.7) 78.7 (3.2)
Income <0.001* <0.015* <0.021* 0.367
Lowest 1,815 (14.4) 51.6 (1.7) 190 (7.5) 16.7 (3.1) 517 (10.3) 29.1 (2.1) 1,108 (45.5) 82.8 (1.5)
Medium-lowest 2,440 (24.1) 35.4 (1.4) 624 (23.3) 26.5 (2.3) 1,118 (23.6) 26.6 (1.6) 698 (27.4) 79.4 (1.7)
Medium-highest 2,776 (30.5) 27.0 (1.1) 1,012 (35.8) 21.3 (1.4) 1,372 (30.6) 23.2 (1.4) 392 (16.3) 82.2 (2.5)
Highest 2,794 (31.0) 30.2 (1.1) 933 (33.4) 26.4 (1.7) 1,586 (35.5) 28.5 (1.4) 287 (10.8) 7805 (2.8)
Living area <0.001* 0.998 0.868 0.823
Urban 8,004 (84.0) 32.6 (0.8) 2,425 (87.7) 23.9 (1.1) 3,784 (83.7) 26.4 (0.9) 1,795 (75.1) 81.2 (1.2)
Rural 1,821 (16.0) 38.5 (1.7) 334 (12.3) 23.9 (2.7) 809 (16.3) 26.8 (2.0) 678 (24.9) 81.7 (1.9)
Marital status <0.001* <0.001* <0.005* <0.031*
Married 6,914 (66.6) 36.5 (0.8) 1,345 (43.4) 35.7 (1.7) 3,918 (85.9) 26.2 (0.9) 1,651 (65.5) 80.9 (1.2)
Divorced/separated/widowed 1,350 (10.0) 57.4 (1.7) 34 (1.0) 32.1 (8.8) 509 (9.8) 32.3 (2.3) 807 (33.9) 82.6 (1.8)
Single 1,561 (23.4) 15.0 (1.0) 1,380 (55.6) 14.5 (1.1) 166 (4.3) 19.0 (3.3) 15 (0.6) 50.6 (13.6)
Smoking <0.001* <0.001* <0.001* <0.001*
Current smoker 1,755 (21.9) 22.1 (1.2) 614 (25.2) 16.3 (1.7) 884 (22.9) 20.4 (1.6) 257 (9.9) 71.8 (3.2)
Ex-smoker 1,842 (18.1) 37.6 (1.3) 298 (11.2) 26.9 (3.0) 853 (20.7) 25.4 (1.6) 691 (27.9) 77.6 (1.8)
Non-smoker 6,228 (60.0) 36.5 (0.9) 1,847 (63.6) 26.3 (1.2) 2,856 (56.4) 29.3 (1.0) 1,525 (62.2) 84.5 (1.2)
Drinking <0.001* 0.075 <0.001* 0.051
Heavy drinker 1,010 (12.7) 20.9 (1.4) 359 (13.9) 19.1 (2.2) 558 (14.5) 18.7 (1.7) 93 (3.7) 74.3 (5.7)
Mild to moderate drinker 4,214 (45.8) 30.5 (0.9) 1,437 (52.8) 24.1 (1.4) 1,963 (44.5) 25.6 (1.2) 820 (32.1) 79.0 (1.6)
Non-drinker 4,601 (41.5) 40.9 (1.0) 969 (33.3) 25.5 (1.6) 2,072 (41.0) 30.4 (1.2) 1,560 (64.2) 82.9 (1.2)
Regular exercise <0.001* 0.211 0.316 0.142
Yes 4,911 (54.2) 30.5 (0.9) 1,666 (62.0) 23.1 (1.2) 2,316 (52.9) 25.8 (1.1) 929 (37.9) 83.0 (1.4)
No 4,914 (45.8) 37.2 (0.8) 1,093 (38.0) 25.2 (1.4) 2,277 (47.1) 27.2 (1.1) 1,544 (62.1) 80.2 (1.3)
Comorbidity <0.001* 0.514 <0.001* <0.001*
Yes 2,033 (18.2) 43.9 (1.3) 356 (13.5) 22.4 (2.4) 886 (17.7) 33.4 (1.8) 791 (32.1) 85.7 (1.5)
No 7,792 (81.8) 31.3 (0.8) 2,403 (86.5) 24.1 (1.1) 3,707 (82.3) 25.0 (0.9) 1,862 (67.9) 79.2 (1.2)
Self-reported health status <0.001* 0.806 <0.001* 0.102
Good 2,901 (31.6) 29.4 (1.1) 1,005 (37.1) 23.3 (1.6) 1,321 (30.0) 24.2 (1.4) 575 (22.2) 78.2 (1.9)
Moderate 5,031 (51.3) 33.0 (0.8) 1,418 (50.6) 24.5 (1.3) 2,459 (52.9) 25.9 (1.0) 1,154 (45.0) 81.2 (1.6)
Poor 1,893 (17.1) 42.9 (1.4) 336 (12.3) 23.0 (2.6) 813 (17.1) 32.2 (1.8) 744 (29.8) 83.7 (1.6)
EQ-5D 3L <0.001* 0.594 <0.048* <0.001*
No problems 6,597 (71.1) 30.1 (0.8) 2,159 (78.3) 24.1 (1.1) 3,262 (72.8) 25.6 (0.9) 1,176 (46.9) 77.9 (1.4)
≥Some problemsb 3,228 (28.9) 42.1 (1.1) 600 (21.7) 23.0 (1.9) 1,331 (27.2) 28.8 (1.3) 1,297 (53.1) 84.3 (1.2)

EQ-5D 3L, EuroQol-5 dimension-3 level; SE, standard error.

aWeighted data. bRegardless of severity, have more than slightly problem.

*P-value was obtained by chi-square; P<0.05.

Korean J Fam Pract 2021;11:247~255 https://doi.org/10.21215/kjfp.2021.11.4.247
© KJFP