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Table 5 Logistic analysis for pregnant women with psychological distress (K6 ≥ 13) on the coast, inland of Miyagi, and in the 13 RCs

From: The prevalence of psychological distress during pregnancy in Miyagi Prefecture for 3 years after the Great Eas t Japan Earthquake

    2011H1 2011H2 2012H1 2012H2 2013H1 2013H2
  13 RCs(n = 67,882) OR(95%CI) ref 0.95(0.80–1.14) 1.14(0.97–1.35) 1.15(0.97–1.36) 1.21(1.03–1.42) 1.18(1.00–1.39)
Inland (n = 5015) OR(95%CI) 1.86(1.29–2.68) 1.74(1.26–2.41) 1.85(1.34–2.56) 2.19(1.60–2.99) 1.67(1.18–2.38) 1.75(1.20–2.55)
Coast (n = 3255) OR(95%CI) 2.05(1.27–3.31) 1.37(0.90–2.08) 1.10
(0.67–1.79)
1.47(0.97–2.24) 1.00(0.61–1.64) 2.06(1.30–3.27)
*Model 1 13 RCs(n = 67,882) OR(95%CI) ref 0.96(0.80–1.15) 1.15(0.97–1.37) 1.16(0.98–1.38) 1.22(1.08–1.44) 1.21(1.02–1.43)
Inland (n = 5015) OR(95%CI) 1.60(1.10–2.33) 1.55(1.11–2.16) 1.55(1.11–2.16) 1.91(1.39–2.64) 1.54(1.08–2.20) 1.58(1.07–2.33)
Coast (n = 3255) OR(95%CI) 1.75(1.07–2.87) 1.19(0.78–1.83) 0.99(0.60–1.62) 1.30(0.84–2.00) 0.87(0.52–1.44) 1.99
(1.25–3.18)
**Model 2 13 RCs(n = 67,882) OR(95%CI) ref 0.95(0.79–1.14) 1.18(0.99–1.40) 1.17(0.99–1.39) 1.26(1.07–1.49) 1.23(1.04–1.46)
Inland (n = 5015) OR(95%CI) 1.52(1.04–2.22) 1.45(1.04–2.02) 1.51(1.08–2.11) 1.97(1.43–2.73) 1.58(1.10–2.26) 1.61(1.09–2.39)
Coast (n = 3255) OR(95%CI) 1.41(0.860–2.306) 1.00(0.65–1.53) 0.92(0.56–1.52) 1.30(0.84–2.00) 0.87(0.53–1.46) 2.18(1.37–3.49)
  1. 2011H1 from May 2011 to October 2011, 2011H2 from November 2011 to April 2012, 2012H1 from May 2012 to October 2012, 2012H2 from November 2012 to April 2013, 2013H1 from May 2013 to October 2013, 2013H2 from November 2013 to April 2014.
  2. OR odds ratio, CI confidence interval. Miyagi RC was combined with inland and coast
  3. 13 RCs (Regional Centers): the 13 regional centers without Miyagi RC and Fukushima RC
  4. *Model 1: adjusted for baseline characters: age, parity, marital status, family income, education level of couple, body mass index, smoking status of couple, alcohol intake, feeling toward this pregnancy, past history of mental illness, fetal number, and number of times participating in the JECS
  5. **Model 2: model 1 with negative life events added. Negative life events in this survey refer to events within the past year at the time of answering the questions.