Table 1 Characteristics and vaccine-related attitudes of study participants

Overall sample

209 (1.8%)

7086 (59.8%)

3498 (29.5%)

1053 (8.9%)

11,846

 Male

102 (1.7%)

3778 (63.3%)

1583 (26.5%)

502 (8.4%)

5965

 Female

107 (1.8%)

3308 (56.2%)

1915 (32.6%)

551 (9.4%)

5881

 65+

28 (0.9%)

2377 (80.1%)

422 (14.2%)

142 (4.8%)

2969

 50–64

72 (1.7%)

2696 (61.8%)

1262 (28.9%)

330 (7.6%)

4360

 30–49

77 (2.2%)

1615 (46.9%)

1347 (39.1%)

402 (11.7%)

3441

 18–29

32 (3.0%)

398 (37.0%)

467 (43.4%)

179 (16.6%)

1076

 65+

30 (1.0%)

2482 (79.8%)

451 (14.5%)

148 (4.8%)

3111

 50–64

74 (1.7%)

2671 (60.9%)

1296 (29.5%)

345 (7.9%)

4386

 30–49

78 (2.3%)

1573 (46.6%)

1330 (39.4%)

394 (11.7%)

3375

 18–29

27 (2.8%)

360 (37.0%)

421 (43.2%)

166 (17.0%)

974

 Junior/senior high school

30 (0.8%)

2171 (57.2%)

1215 (32.0%)

378 (10.0%)

3794

 Two- or three-year college

67 (2.6%)

1446 (57.0%)

779 (30.7%)

245 (9.7%)

2537

 Four-year college or higher

112 (2.0%)

3469 (62.9%)

1504 (27.3%)

430 (7.8%)

5515

 Living alone

40 (2.0%)

1043 (52.7%)

657 (33.2%)

241 (12.2%)

1981

 Living only with spouse

45 (1.3%)

2479 (71.3%)

757 (21.8%)

198 (5.7%)

3479

 Living with children

79 (2.2%)

2181 (60.8%)

1056 (29.4%)

274 (7.6%)

3590

 Living with parents

28 (1.4%)

972 (48.3%)

756 (37.6%)

256 (12.7%)

2012

 Three-generation household

14 (2.3%)

324 (54.4%)

205 (34.4%)

53 (8.9%)

596

 Other (siblings only, friends, grandparents and grandchildren etc.)

3 (1.6%)

87 (46.3%)

67 (35.6%)

31 (16.5%)

188

 Employed

184 (2.6%)

4043 (57.5%)

2163 (30.7%)

646 (9.2%)

7036

 Homemaker

11 (0.5%)

1491 (64.8%)

659 (28.6%)

141 (6.1%)

2302

 Not employed (seeking a job)

3 (1.0%)

140 (47.9%)

109 (37.3%)

40 (13.7%)

292

 Not employed (not seeking a job)

6 (0.3%)

1250 (68.6%)

399 (21.9%)

166 (9.1%)

1821

 Student

5 (1.9%)

98 (37.1%)

121 (45.8%)

40 (15.2%)

264

 Other

0 (0.0%)

64 (48.9%)

47 (35.9%)

20 (15.3%)

131

 Employed

185 (2.6%)

4023 (57.1%)

2199 (31.2%)

639 (9.1%)

7046

 Homemaker

13 (0.6%)

1475 (65.0%)

646 (28.5%)

134 (5.9%)

2268

 Not employed (seeking a job)

2 (0.6%)

159 (51.1%)

101 (32.5%)

49 (15.8%)

311

 Not employed (not seeking a job)

7 (0.4%)

1278 (68.4%)

407 (21.8%)

176 (9.4%)

1868

 Student

2 (0.9%)

85 (39.4%)

97 (44.9%)

32 (14.8%)

216

 Other

0 (0.0%)

66 (48.2%)

48 (35.0%)

23 (16.8%)

137

 < 3

35 (1.2%)

1611 (53.2%)

1013 (33.4%)

372 (12.3%)

3031

 3–4

42 (1.3%)

2071 (63.6%)

872 (26.8%)

269 (8.3%)

3254

 5–7

68 (2.2%)

1887 (59.7%)

981 (31.0%)

225 (7.1%)

3161

 ≥ 8

64 (2.7%)

1517 (63.2%)

632 (26.3%)

187 (7.8%)

2400

 < 3

32 (1.0%)

1680 (54.3%)

1008 (32.6%)

372 (12.0%)

3092

 3–4

45 (1.4%)

2024 (62.8%)

888 (27.5%)

267 (8.3%)

3224

 5–7

67 (2.1%)

1885 (59.6%)

988 (31.2%)

224 (7.1%)

3164

 ≥ 8

65 (2.7%)

1497 (63.3%)

614 (26.0%)

190 (8.0%)

2366

 < 1

63 (2.0%)

1529 (49.5%)

1121 (36.3%)

373 (12.1%)

3086

 1–3

39 (1.7%)

1286 (56.5%)

743 (32.6%)

209 (9.2%)

2277

 4–9

47 (2.0%)

1421 (60.0%)

706 (29.8%)

196 (8.3%)

2370

 ≥ 10

60 (1.5%)

2850 (69.3%)

928 (22.6%)

275 (6.7%)

4113

 < 1

51 (1.6%)

1538 (49.1%)

1153 (36.8%)

390 (12.5%)

3132

 1–3

51 (2.3%)

1258 (56.8%)

714 (32.2%)

191 (8.6%)

2214

 4–9

39 (1.7%)

1417 (61.1%)

687 (29.6%)

176 (7.6%)

2319

 ≥ 10

68 (1.6%)

2873 (68.7%)

944 (22.6%)

296 (7.1%)

4181

 < 18.5

23 (1.6%)

739 (50.4%)

524 (35.7%)

181 (12.3%)

1467

 18.5–24.9

148 (1.8%)

4930 (60.5%)

2377 (29.2%)

693 (8.5%)

8148

 25.0–29.9

32 (1.7%)

1210 (64.3%)

487 (25.9%)

153 (8.1%)

1882

 ≥ 30.0

6 (1.7%)

207 (59.3%)

110 (31.5%)

26 (7.4%)

349

 Hypertension

34 (1.6%)

1577 (74.8%)

402 (19.1%)

96 (4.6%)

2109

 Dyslipidemia

25 (2.1%)

910 (76.2%)

200 (16.8%)

59 (4.9%)

1194

 Diabetes

9 (1.4%)

482 (72.5%)

136 (20.5%)

38 (5.7%)

665

 Heart disease

7 (2.2%)

234 (74.3%)

56 (17.8%)

18 (5.7%)

315

 Renal disease

2 (2.1%)

66 (68.8%)

23 (24.0%)

5 (5.2%)

96

 Cancer

4 (2.0%)

146 (73.7%)

36 (18.2%)

12 (6.1%)

198

 Respiratory disease

5 (1.8%)

180 (65.2%)

66 (23.9%)

25 (9.1%)

276

 Other

2 (1.2%)

102 (60.0%)

50 (29.4%)

16 (9.4%)

170

 Most people can be trusted

70 (1.8%)

2604 (67.9%)

929 (24.2%)

234 (6.1%)

3837

 Need to be very careful

132 (1.8%)

4220 (56.4%)

2369 (31.7%)

760 (10.2%)

7481

 Don’t know

7 (1.3%)

262 (49.6%)

200 (37.9%)

59 (11.2%)

528

 Most people can be trusted

63 (1.7%)

2532 (69.5%)

822 (22.6%)

225 (6.2%)

3642

 Need to be very careful

139 (1.8%)

4287 (55.9%)

2473 (32.3%)

765 (10.0%)

7664

 Don’t know

7 (1.3%)

267 (49.4%)

203 (37.6%)

63 (11.7%)

540

 None (0–4)

113 (1.5%)

4761 (65.1%)

1899 (26.0%)

540 (7.4%)

7313

 Mild (5–9)

56 (2.0%)

1533 (54.2%)

949 (33.6%)

290 (10.3%)

2828

 Moderate (10–14)

24 (2.4%)

497 (49.2%)

375 (37.1%)

115 (11.4%)

1011

 Moderately severe (15–19)

12 (2.5%)

209 (44.0%)

183 (38.5%)

71 (14.9%)

475

 Severe (20–27)

4 (1.8%)

86 (39.3%)

92 (42.0%)

37 (16.9%)

219

 None (0–4)

110 (1.5%)

4784 (65.0%)

1918 (26.1%)

545 (7.4%)

7357

 Mild (5–9)

51 (1.9%)

1511 (55.2%)

919 (33.6%)

257 (9.4%)

2738

 Moderate (10–14)

29 (2.9%)

487 (48.7%)

352 (35.2%)

131 (13.1%)

999

 Moderately severe (15–19)

10 (2.1%)

209 (43.1%)

192 (39.6%)

74 (15.3%)

485

 Severe (20–27)

9 (3.4%)

95 (35.6%)

117 (43.8%)

46 (17.2%)

267

 Minimal (0–4)

140 (1.6%)

5628 (63.0%)

2453 (27.5%)

714 (8.0%)

8935

 Mild (5–9)

38 (2.0%)

998 (52.8%)

662 (35.0%)

192 (10.2%)

1890

 Moderate (10–14)

23 (3.3%)

321 (46.0%)

260 (37.2%)

94 (13.5%)

698

 Severe (15–21)

8 (2.5%)

139 (43.0%)

123 (38.1%)

53 (16.4%)

323

 Minimal (0–4)

133 (1.5%)

5588 (63.3%)

2412 (27.3%)

690 (7.8%)

8823

 Mild (5–9)

43 (2.2%)

1032 (52.5%)

694 (35.3%)

197 (10.0%)

1966

 Moderate (10–14)

22 (3.4%)

306 (47.1%)

226 (34.8%)

96 (14.8%)

650

 Severe (15–21)

11 (2.7%)

160 (39.3%)

166 (40.8%)

70 (17.2%)

407

 No fear (7–15)

65 (1.8%)

2066 (56.7%)

1056 (29.0%)

456 (12.5%)

3643

 Mild (16–20)

79 (1.9%)

2556 (62.8%)

1152 (28.3%)

285 (7.0%)

4072

 Moderate (21–25)

45 (1.5%)

1761 (59.5%)

934 (31.6%)

218 (7.4%)

2958

 Severe (26–35)

20 (1.7%)

703 (59.9%)

356 (30.3%)

94 (8.0%)

1173

 No fear (7–15)

55 (1.8%)

1686 (54.7%)

869 (28.2%)

472 (15.3%)

3082

 Mild (16–20)

72 (1.8%)

2514 (62.7%)

1159 (28.9%)

262 (6.5%)

4007

 Moderate (21–25)

56 (1.7%)

1992 (60.1%)

1041 (31.4%)

228 (6.9%)

3317

 Severe (26–35)

26 (1.8%)

894 (62.1%)

429 (29.8%)

91 (6.3%)

1440

 Tokyo

21 (1.7%)

718 (57.9%)

368 (29.7%)

133 (10.7%)

1240

 Kanagawa

9 (1.0%)

528 (61.5%)

266 (31.0%)

56 (6.5%)

859

 Osaka

10 (1.2%)

520 (61.3%)

240 (28.3%)

78 (9.2%)

848

 Aichi

10 (1.4%)

449 (61.8%)

203 (28.0%)

64 (8.8%)

726

 Saitama

9 (1.3%)

413 (59.8%)

220 (31.8%)

49 (7.1%)

691

 Chiba

8 (1.3%)

374 (60.9%)

165 (26.9%)

67 (10.9%)

614

 Hyogo

3 (0.5%)

341 (62.1%)

153 (27.9%)

52 (9.5%)

549

 Hokkaido

7 (1.3%)

328 (61.9%)

146 (27.5%)

49 (9.2%)

530

 Fukuoka

5 (1.1%)

259 (59.3%)

120 (27.5%)

53 (12.1%)

437

 Tohoku region

14 (1.7%)

509 (63.1%)

220 (27.3%)

64 (7.9%)

807

 North Kanto

14 (2.3%)

341 (56.7%)

195 (32.4%)

51 (8.5%)

601

 Hokuriku

9 (1.9%)

280 (60.6%)

138 (29.9%)

35 (7.6%)

462

 Chubu

16 (1.9%)

492 (59.3%)

260 (31.4%)

61 (7.4%)

829

 Kinki

15 (1.8%)

513 (60.1%)

240 (28.1%)

85 (10.0%)

853

 Chugoku

19 (2.8%)

384 (55.8%)

230 (33.4%)

55 (8.0%)

688

 Shikoku

12 (3.5%)

214 (62.4%)

87 (25.4%)

30 (8.7%)

343

 Kyushu and Okinawa

28 (3.6%)

423 (55.0%)

247 (32.1%)

71 (9.2%)

769