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Table 1 Changes over time in subjects’ backgrounds

From: Ultrasound cardiography examinations detect victims’ long-term realized and potential consequences after major disasters: a case-control study

  18th month after the disaster 30th month after the disaster 44th month after the disaster 55th month after the disaster Total p value
n = 207 n = 125 n = 121 n = 106 n = 559
Age (years) 70.2 ± 9.9 71.4 ± 9.9 71.2 ± 7.6 66.8 ± 13.2 70.0 ± 10.3 < 0.01 cef
Gender (male/female) 45/162 37/88 32/89 35/71 149/410 ns
Blood pressure
 SBP (mmHg) 138.7 ± 18.4 135.4 ± 18.2 139.1 ± 18.3 136.9 ± 18.9 137.7 ± 18.4 ns
 DBP (mmHg) 82.8 ± 12.3 78.8 ± 11.7 81.5 ± 12.4 80.3 ± 12.8 81.1 ± 12.3 < 0.05a
 PP (mmHg) 55.8 ± 14.1 56.5 ± 16.1 57.5 ± 15.0 56.6 ± 16.3 56.5 ± 15.2 ns
 MBP(mmHg) 101.4 ± 13.0 97.7 ± 12.0 100.7 ± 12.8 99.2 ± 13.1 100.0 ± 12.8 ns
Subjects with UCG findings, n (%) 87 (42.0) 76 (60.8) 88 (72.7) 78 (73.6) 329 (58.8) < 0.0001abc
Lifestyle
 Exercises, n (%) 121 (58.4) 81 (64.8) 82 (67.7) 55 (51.8) 339 (60.6) ns
 Smoker, n (%) 16 (7.7) 11 (8.8) 10 (8.2) 11 (10.3) 48 (8.0) ns
Underlying disease
 DL, n (%) 68 (32.8) 65 (52.0) 63 (52.0) 48 (45.2) 244 (43.6) < 0.001ab
 DM, n (%) 23 (11.1) 21 (16.8) 19 (15.7) 17 (16.0) 80 (14.3) ns
 Heart disease, n (%) 54 (25.9) 37 (29.6) 38 (31.4) 29 (27.3) 158 (28.2) ns
 HT, n (%) 111 (53.6) 72 (57.6) 70 (57.8) 47 (44.3) 300 (53.6) ns
 Insomnia, n (%) 106 (51.2) 66 (52.8) 46 (38.0) 47 (44.3) 265 (47.4) ns
Living environment
 Temporary housing resident, n (%) 199 (96.1) 114 (91.2) 50 (41.3) 23 (21.7) 386 (69.0) < 0.0001bcdef
  1. Mean ± standard deviation. Nominal variables are shown as frequency (%). Fisher’s exact test (Bonferroni) and ANOVA (Bonferroni). Heart disease (coronary artery disease, arrhythmia, heart failure, valve regurgitation). In our investigation which we conducted four times, we examined 922 victims who were residents of the temporary housing complexes and neighboring area in Watari-gun, Miyagi Prefecture. Of these subjects, we excluded 55 for whom we found inadequacies in the medical questionnaire form, as well as 308 re-examinees. Also, the subjects for each year were limited only to new examinees. The final number of subjects was 559
  2. ns non-significant difference. SBP systolic blood pressure, DBP diastolic blood pressure, PP pulse pressure, MBP mean blood pressure, UCG ultrasound cardiography, DL dyslipidemia, DM diabetes mellitus, HT hypertension
  3. a18th month after the disaster vs. 30th month after the disaster b18th month after the disaster vs. 44th month after the disaster. c18th month after the disaster vs. 55th month after the disaster. d30th month after the disaster vs. 44th month after the disaster. e30th month after the disaster vs. 55th month after the disaster. f44th month after the disaster vs. 55th month after the disaster