Characteristics of survey participants and correlated incidence of exacerbation of cardiovascular-related symptoms
| Exacerbation of headache | Exacerbation of dizziness | Exacerbation of palpitations | Exacerbation of shortness of breath | |
| N (%) | N (%) | N (%) | N (%) | |
| Sex | ||||
| Men | 466 (1.4) | 341 (1.1) | 277 (0.9) | 257 (0.8) |
| Women | 1427 (3.5) | 888 (2.2) | 808 (2.0) | 369 (0.9) |
| Age | ||||
| 20–49 | 966 (3.9) | 507 (2.0) | 407 (1.6) | 147 (0.6) |
| 50–64 | 514 (2.4) | 302 (1.4) | 323 (1.5) | 159 (0.8) |
| ≥65 | 413 (1.4) | 420 (1.6) | 355 (1.3) | 320 (0.4) |
| Mental health status | ||||
| K6 <13 | 1092 (1.7) | 695 (1.1) | 562 (0.9) | 355 (0.6) |
| K6 ≥13 | 801 (8.9) | 534 (5.3) | 523 (5.2) | 271 (2.7) |
| Post-traumatic stress disorder | ||||
| No | 1062 (1.7) | 653 (1.0) | 542 (0.9) | 323 (0.5) |
| Yes | 831 (8.0) | 576 (5.5) | 543 (5.2) | 303 (2.9) |
| Smoking status | ||||
| Non-smoker | 1104 (2.7) | 715 (1.8) | 653 (1.6) | 318 (0.8) |
| Ex-smoker | 338 (2.1) | 226 (1.4) | 214 (1,4) | 171 (1.1) |
| Current smoker | 403 (2.8) | 258 (1.8) | 196 (1.3) | 123 (0.8) |
| Alcohol consumption | ||||
| Less than once a month | 1067 (2.9) | 674 (1.8) | 597 (1.6) | 323 (0.9) |
| Ex-drinker | 80 (2.9) | 63 (2.3) | 61 (2.2) | 41 (1.5) |
| One or more per month | 715 (2.3) | 463 (1.5) | 407 (1.3) | 248 (0.8) |
| Physical activity | ||||
| ≥ daily | 179 (1.7) | 131 (1.2) | 96 (0.9) | 69 (0.7) |
| 2–4 times per week | 309 (2.2) | 245 (1.7) | 195 (1.4) | 123 (0.9) |
| Weekly | 234 (2.4) | 143 (1.4) | 139 (1.4) | 97 (1.0) |
| Never | 1144 (3.2) | 687 (1.9) | 637 (1.8) | 325 (0.9) |
| Hypertension history | ||||
| No | 1216 (2.8) | 667 (1.6) | 584 (1.4) | 276 (0.6) |
| Yes | 677 (2.2) | 562 (1.8) | 501 (1.6) | 350 (1.1) |
| Stroke history | ||||
| No | 1799 (2.6) | 1146 (1.7) | 1799 (1.5) | 576 (0.8) |
| Yes | 94 (2.4) | 83 (2.2) | 94 (1.6) | 50 (1.3) |
| Heart disease history | ||||
| No | 1691 (2.6) | 1025 (1.6) | 1691 (2.6) | 432 (0.7) |
| Yes | 202 (10.7) | 204 (2.8) | 202 (4.0) | 194 (2.7) |
| Unemployment | ||||
| No | 1293 (2.2) | 874 (1.5) | 790 (1.4) | 470 (0.8) |
| Yes | 600 (4.2) | 355 (2.5) | 295 (2.1) | 156 (1.1) |
| Income decrease | ||||
| No | 1432 (2.4) | 968 (1.6) | 870 (1.4) | 506 (0.8) |
| Yes | 461 (3.6) | 261 (2.0) | 215 (1.7) | 120 (0.9) |
| Living arrangement | ||||
| Evacuation shelter | 213 (2.5) | 12 (1.6) | 5 (0.7) | 5 (0.7) |
| Temporary housing | 195 (2.8) | 134 (1.9) | 89 (1.3) | 81 (1.2) |
| Rental house or apartment | 796 (3.5) | 489 (2.1) | 421 (1.8) | 224 (1.0) |
| Relatives' home | 78 (2.8) | 53 (1.9) | 209 (1.0) | 108 (0.5) |
| Own home | 292 (1.4) | 199 (0.9) | 45 (1.6) | 29 (1.0) |
| Tsunami experience | ||||
| No | 1424 (2.4) | 908 (1.6) | 830 (1.4) | 458 (0.8) |
| Yes | 469 (3.2) | 321 (2.2) | 255 (1.7) | 168 (1.1) |
| Radiation experience | ||||
| No | 717 (2.1) | 426 (1.2) | 358 (1.0) | 201 (0.6) |
| Yes | 1176 (3.1) | 803 (2.1) | 727 (1.9) | 425 (1.1) |
| Damage to house | ||||
| None | 413 (2.2) | 258 (1.4) | 233 (1.3) | 103 (0.6) |
| Partial | 911 (2.4) | 600 (1.6) | 559 (1.5) | 347 (0.9) |
| Half | 184 (3.5) | 129 (2.5) | 83 (1.6) | 55 (1.1) |
| More than half | 67 (3.4) | 48 (2.5) | 38 (1.9) | 23 (1.2) |
| Total | 126 (3.3) | 86 (2.2) | 66 (1.7) | 43 (1.1) |
| Loss of family member | ||||
| No | 552 (3.9) | 363 (2.6) | 296 (2.1) | 199 (1.4) |
| Yes | 1291 (2.3) | 825 (1.5) | 759 (1.3) | 404 (0.7) |
| Number of years of education | ||||
| <12 years (reference) | 352 (1.9) | 265 (1.4) | 223 (1.2) | 202 (1.1) |
| ≥12 years | 1471 (2.9) | 916 (1.8) | 822 (1.6) | 397 (0.8) |