Table 3 Interannual change in psychological distress (K6 ≥ 13) on the coast, inland of Miyagi, and in the 13 RCs
|  |  | 2011H1 | 2011H2 | 2012H1 | 2012H2 | 2013H1 | 2013H2 | Chi-square p†| Trend p |
|---|---|---|---|---|---|---|---|---|---|
13 RCs(n = 67,882) | % (n) | 2.74 (232/8463) | 2.61 (270/10346) | 3.11 (375/12042) | 3.14 (373/11899) | 3.29 (434/13193) | 3.21 (383/11939) | 0.0187 | 0.0018 |
Miyagi RC (n = 8270) | % (n) | 5.14 (54/1050) | 4.28 (71/1658) | 4.19 (64/1527) | 5.05 (76/1506) | 3.75 (55/1466) | 4.99 (53/1063) | 0.4087 | 0.7773 |
Chi-square p†| < 0.001 | 0.0001 | 0.0250 | 0.0001 | 0.3499 | 0.0020 |  |  | |
Inland (n = 5015) | % (n) | 4.99 (35/702) | 4.68 (46/983) | 4.96 (46/927) | 5.81 (51/878) | 4.50 (38/844) | 4.70 (32/681) | 0.8515 | 0.9079 |
Coast (n = 3255) | % (n) | 5.46 (19/348) | 3.70 (25/675) | 3.00 (18/600) | 3.98 (25/628) | 2.73 (17/622) | 5.50 (21/382) | 0.1265 | 0.8022 |
Chi-square p†| < 0.0001 | 0.0004 | 0.0086 | < 0.001 | 0.1136 | 0.0067 |  |  | |