| Factors |
| COVID-19 vaccine | p-value (chi-square test) | Measles/rubella vaccine | p-value (chi-square test) | ||
| ≥3 doses | ≤2 doses | ≥2 doses | ≤1 dose | ||||
| Smoking
Karaoke activities
Gender
Club or group activities
Travel activities
Course
Measles/rubella vaccine
| Yes No High Low Male Female Yes No High Low Science Humanities ≥2 doses ≤1 dose | 64 (1.8%) 3554 672 (18.6%) 2946 1721 (47.6%) 1897 1498 (41.4%) 2120 2114 1504 2511 1107 2736 (75.6%) 882 | 85 (4.8%) 1703 401 (22.4%) 1387 1128 (63.1%) 660 701 (39.2%) 1087 1033 755 1205 583 1156 (64.7%) 632 | <1 × 10−9
<0.001
<1 × 10−15
0.13
0.67
0.14
<1 × 10−15
| 90 (2.3%) 3802 748 3144 1921 (49.4%) 1971 1632 (41.9%) 2260 2271 1621 2667 1225
| 59 (3.9%) 1455 325 1189 928 (61.3%) 586 567 (37.5%) 947 876 638 1049 465
| <0.01
0.07
<1 × 10−14
<0.01
0.77
0.61
|