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. 2021 Mar 26;106:52–60. doi: 10.1016/j.ijid.2021.03.069

Table 1.

Baseline characteristics of study participants categorised according to their willingness to receive the COVID-19 vaccination.

All participants (N = 1720) Willing to vaccinate (n = 1655) Not willing to vaccinate (n = 65) p-Value
Age (years) 33 (9) 33 (9) 32 (9) 0.460
Sex (female) 1050 (61.0) 1009 (61.0) 41 (63.1) 0.732
Country 0.163
India 406 (23.6) 378 (23.4) 19 (29.2)
China 303 (17.6) 288 (17.4) 15 (23.1)
Vietnam 472 (27.4) 463 (28.0) 9 (13.8)
Indonesia 430 (25.0) 411 (24.8) 19 (29.2)
Singapore 61 (3.5) 58 (3.5) 3 (4.6)
Bhutan 47 (2.7) 47 (2.8) 0
Marital status 0.678
Single 627 (36.5) 598 (36.1) 29 (44.6)
Married 1054 (61.3) 1019 (61.6) 35 (53.8)
Separated 8 (0.5) 8 (0.5) 0
Divorced 27 (1.6) 26 (1.6) 1 (1.5)
Widow 4 (0.2) 4 (0.2) 0
Has children or dependents 823 (47.8) 800 (48.3) 23 (35.4) 0.040
Smoking status 0.922
Current 79 (4.6) 79 (4.6) 3 (4.6)
Ex-smoker 128 (7.4) 124 (7.5) 4 (6.2)
Non-smoker 1513 (88.0) 1455 (87.9) 58 (89.2)
Housing 0.724
1-room flat 165 (9.6) 158 (9.5) 7 (10.8)
2 room flat 166 (9.7) 162 (9.8) 4 (6.2)
3-room flat 302 (17.6) 287 (17.3) 15 (23.1)
4-room flat 83 (4.8) 82 (5.0) 1 (1.5)
5-room flat 52 (3.0) 50 (3.0) 2 (3.1)
Condominium 75 (4.4) 72 (4.4) 3 (4.6)
Landed housing 877 (51.0) 844 (51.0) 33 (50.8)
Religion 0.979
Non-religious 720 (41.9) 699 (42.2) 21 (32.3)
Christianity 104 (6.0) 98 (5.9) 6 (9.2)
Islam 412 (23.9) 395 (23.8) 17 (26.2)
Buddhism 113 (6.6) 110 (6.6) 3 (4.6)
Daoism 3 (0.2) 3 (0.2) 0
Hinduism 352 (20.6) 334 (20.3) 18 (27.7)
Confucianism 2 (0.1) 2 (0.1) 0
Others 14 (0.8) 14 (0.8) 0
Currently employed during pandemic
Annual household income 0.095
Less than USD $25,000 1349 (78.4) 1301(78.6) 48 (73.8)
USD $25,000–34.999 148 (8.6) 141 (8.5) 7 (10.8)
USD $35,000–49,999 69 (4.0) 62 (3.7) 7 (10.8)
USD $50,000–74,999 60 (3.5) 60 (3.6) 0
USD $75,000–99,999 39 (2.3) 38 (2.3) 1 (1.5)
More than USD $100,000 55 (3.2) 53 (3.2) 2 (3.1)
Education level 0.312
No formal education 5 (0.3) 5 (0.3) 0
Less than high school 2 (0.1) 2 (0.1) 0
High school 84 (4.9) 84 (5.1) 0
Undergraduate 698 (40.5) 667 (40.3) 31 (47.7)
Postgraduate 180 (10.5) 177 (10.7) 3 (4.6)
Occupation 0.269
Physician 892 (51.8) 859 (51.9) 33 (50.7)
Nurse 404 (23.5) 389 (23.5) 15 (23.1)
Allied healthcare 184 (5.1) 179 (10.8) 5 (7.7)
Medical students 19 (1.1) 18 (1.1) 1 (1.5)
Technician 55 (3.2) 52 (3.1) 3 (4.6)
Clerical staff 14 (0.8) 14 (0.8) 0
Administrator 69 (4.0) 65 (3.9) 4 (6.2)
Maintenance worker 12 (0.7) 10 (0.6) 2 (3.1)
Others 71 (4.1) 69 (4.2) 2 (3.1)
Presence of medical condition 213 (12.4) 203 (12.3) 10 (15.4) 0.454
Hypertension 108 (6.3) 101 (6.1) 7 (10.8) 0.128
Hyperlipidemia 192 (11.2) 182 (11.0) 10 (15.4) 0.271
Diabetes mellitus 44 (2.6) 41 (2.5) 3 (4.6) 0.284
Previous myocardial infarction 15 (0.9) 13 (0.8) 2 (3.1) 0.051
Previous heart failure 3 (0.2) 1 (0.1) 2 (3.1) <0.001
Atrial fibrillation 45 (2.6) 42 (2.5) 3 (4.6) 0.303
Other heart problems 33 (1.9) 30 (1.8) 3 (4.6) 0.106
Asthma 84 (4.9) 75 (4.5) 9 (13.8) <0.001
Chronic obstructive pulmonary disease 10 (0.6) 9 (0.5) 1 (1.5) 0.301
Obstructive sleep apnea 25 (1.5) 24 (1.5) 1 (1.5) 0.953
Other lung problems 35 (2.0) 33 (2.0) 2 (3.1) 0.544
Cancer 11 (0.6) 10 (0.6) 1 (1.5) 0.354
Anxiety 171 (9.9) 161 (9.7) 10 (15.3) 0.135
On long-term medications 493 (28.7) 472 (28.5) 21 (32.3) 0.508
On private health insurance 854 (49.7) 830 (50.2) 24 (36.9) 0.111
Engages in regular physical activity 747 (43.4) 731 (44.2) 16 (24.6) 0.002

p < 0.05 denotes statistical significance.