Korean Journal of Family Practice

Table. 2.

Comparison of characteristics between influenza vaccination group and non-vaccination group

Variable Middle school P-value High school P-value
Non-vaccinated Vaccinated Non-vaccinated Vaccinated
Age 13.67±0.961 13.36±0.954 <0.001 16.50±0.929 16.36±0.940 <0.001
Gender <0.001 0.075
Man 7,891 (50.6) 7,760 (49.4) 11,653 (73.4) 4,319 (26.6)
Woman 7,362 (48.0) 7,870 (52.0) 11,129 (72.1) 4,290 (27.9)
Grade <0.001 <0.001
1 4,068 (40.1) 6,120 (59.9) 6,882 (68.2) 3,283 (31.8)
2 4,816 (46.1) 5,560 (53.9) 7,975 (73.8) 2,825 (26.2)
3 6,369 (61.7) 3,950 (38.3) 7,925 (75.8) 2,501 (24.2)
City type <0.001 0.829
Small city 1,099 (51.1) 1,101 (49.0) 1,948 (73.5) 691 (26.5)
Middle sized city 7,794 (49.3) 7,512 (50.7) 10,552 (72.8) 3,950 (27.2)
Metropolitan 6,360 (47.3) 7,017 (52.7) 10,282 (72.6) 3,968 (27.4)
Economic status <0.001 <0.001
Very high 1,807 (44.1) 2,337 (55.9) 1,687 (66.8) 882 (33.2)
High 4,552 (45.8) 5,366 (54.2) 5,614 (68.8) 2,555 (31.2)
Moderate 7,066 (51.8) 6,563 (48.2) 11,006 (73.8) 3,947 (26.2)
Low 1,535 (58.0) 1,152 (42.0) 3,612 (78.3) 1,000 (21.7)
Very low 293 (58.5) 212 (41.5) 863 (80.5) 225 (19.5)
Residential type 0.692 0.029
With family 14,970 (49.3) 15,308 (50.7) 21,029 (73.0) 7,853 (27.0)
With relatives 111 (52.0) 98 (48.0) 210 (73.1) 77 (26.9)
In dormitory 104 (46.6) 133 (53.4) 1,440 (69.8) 624 (30.2)
In nursery 68 (46.1) 91 (53.9) 103 (67.3) 55 (32.7)
School achievement <0.001 <0.001
Very high 2,337 (45.6) 2,764 (54.4) 2,414 (71.3) 1,013 (28.7)
High 4,012 (46.4) 4,527 (53.6) 5,339 (71.6) 2,117 (28.4)
Moderate 4,003 (48.7) 4,253 (51.3) 6,912 (72.4) 2,641 (27.6)
Low 3,351 (53.3) 2,998 (46.7) 5,506 (73.9) 1,963 (26.1)
Very low 1,550 (59.2) 1,088 (40.8) 2,611 (75.1) 875 (24.9)
Educational level of father <0.001 <0.001
Middle school or lower 226 (54.6) 188 (45.4) 588 (77.4) 184 (22.6)
High school 3,153 (50.1) 3,153 (49.9) 7,062 (73.4) 2,540 (26.6)
University or higher 7,491 (47.5) 8,270 (52.5) 11,219 (71.5) 4,554 (28.5)
Educational level of mother <0.001 <0.001
Middle school or lower 213 (60.9) 138 (39.1) 484 (74.6) 174 (25.4)
High school 3,795 (50.0) 3,826 (50.0) 8,720 (73.9) 3,086 (26.1)
University or higher 7,145 (47.3) 7,895 (52.7) 9,864 (71.0) 4,100 (29.0)
Experience of part-time job <0.001 0.001
No 14,470 (49.0) 15,052 (51.0) 17,550 (72.3) 6,798 (27.7)
Yes 783 (57.5) 578 (42.5) 5,232 (74.4) 1,811 (25.6)
Weekly allowance (10,000 won) 0.858 0.002
<1 5,909 (49.4) 6,011 (50.6) 4,432 (74.7) 1,508 (25.3)
1–2 4,507 (49.1) 4,644 (50.9) 5,791 (72.6) 2,206 (27.4)
2–3 1,829 (48.9) 1,884 (51.1) 3,547 (72.8) 1,344 (27.2)
≥3 3,008 (49.7) 3,091 (50.3) 9,012 (71.9) 3,551 (28.1)
Ever smoked <0.001 0.002
No 14,032 (48.8) 14,633 (51.2) 18,376 (72.3) 7,083 (27.7)
Yes 1,221 (55.9) 997 (44.1) 4,406 (74.5) 1,526 (25.5)
Ever drank alcohol <0.001 0.001
No 10,962 (48.4) 11,736 (51.6) 10,852 (71.8) 4,307 (28.2)
Yes 4,291 (52.1) 3,894 (47.9) 11,930 (73.7) 4,302 (26.3)
Physical activity 0.004 <0.001
Non-optimal intensity 14,319 (49.6) 14,472 (50.4) 21,805 (73.0) 8,153 (27.0)
Optimal intensity 934 (45.7) 1,158 (54.3) 977 (68.1) 456 (31.9)
Asthma <0.001 <0.001
No 14,031 (49.7) 14,178 (50.3) 20,903 (73.1) 7,740 (26.9)
Yes 1,222 (45.6) 1,452 (54.4) 1,879 (68.8) 869 (31.2)
Allergic rhinitis <0.001 <0.001
No 10,635 (51.2) 10,169 (48.8) 14,738 (75.0) 4,973 (25.0)
Yes 4,618 (45.7) 5,461 (54.3) 8,044 (69.1) 3,636 (30.9)
Atopic dermatitis
No 11,577 (49.2) 11,930 (50.9) 0.575 16,832 (72.7) 6,399 (27.3) 0.699
Yes 3,676 (49.7) 3,700 (50.3) 5,950 (72.9) 2,200 (27.1)

Values are presented as number (%) or mean±standard deviation.

Korean J Fam Pract 2021;11:263~271 https://doi.org/10.21215/kjfp.2021.11.4.263
© KJFP