Table 1.
Characteristics of emergency transport in the former evacuation zone and outside the evacuation zone in Minamisoma City between July 12, 2016 and July 31, 2018.
| Former evacuation zone (n = 325) | Other areas (n = 4307) | P | |
| Total EMS time, mean (SD), min | 48 (16) | 40 (15) | <.001 |
| T1 | 8 (4) | 9 (3) | .001 |
| T2 | 23 (10) | 21 (9) | .002 |
| T3 | 16 (9) | 9 (9) | <.001 |
| Sex | 0.345 | ||
| Male | 183 (56.3%) | 2310 (53.6%) | |
| Female | 141 (43.4%) | 1986 (46.1%) | |
| Age, y | 0.546 | ||
| 0–15 | 10 (3.1%) | 173 (4.0%) | |
| 16–39 | 32 (9.8%) | 423 (9.8%) | |
| 40–64 | 86 (26.5%) | 1012 (23.5%) | |
| 65–74 | 56 (17.2%) | 685 (15.9%) | |
| ≥75 | 141 (43.4%) | 2014 (46.8%) | |
| Time of day | .655 | ||
| 00:00–05:59 | 37 (11.4%) | 522 (12.1%) | |
| 06:00–11:59 | 111 (34.2%) | 1473 (34.2%) | |
| 12:00–17:59 | 109 (33.5%) | 1317 (30.6%) | |
| 18:00–23:59 | 68 (20.9%) | 995 (23.1%) | |
| Severity | .056 | ||
| Mild (no need for hospitalization) | 163 (50.2%) | 1837 (42.7%) | |
| Moderate | 132 (40.6%) | 1977 (45.9%) | |
| Severe | 24 (7.4%) | 360 (8.3%) | |
| Death | 6 (1.8%) | 130 (3.0%) | |
| No. of calls to hospital | .809 | ||
| Once | 245 (75.4%) | 3139 (74.1%) | |
| Twice | 41 (12.6%) | 622 (14.4%) | |
| 3 Times | 21 (6.5%) | 254 (5.9%) | |
| 4 Times | 6 (1.8%) | 117 (2.7%) | |
| 5 Times | 6 (1.8%) | 59 (1.4%) | |
| ≥6 Times | 6 (1.8%) | 61 (1.4%) | |
| Unknown | 0 | 1 |
SD = standard deviation.