Table 2 The ischemic heart disease incidence counts and rates before and after the 2016 Gyeongju earthquake (analyses by age and income groups)

Gyeongju

Pohang

Gimpo

Jeonju

Gyeongju

Pohang

Gimpo

Jeonju

Gyeongju

vs. Pohang

Gyeongju

vs. Gimpo

Gyeongju

vs. Jeonju

Pooled

estimates

Age 25–44

2014.09-2015.08

1.9

2.1

3.8

5.0

114.6

132.0

154.4

106.2

2015.09-2016.08

1.9

2.1

4.2

5.0

102.8

136.0

169.8

134.1

1.00 (0.46, 2.17)

0.93 (0.43, 1.99)

1.00 (0.48, 2.12)

0.98 (0.63, 1.52)

2016.09-2017.08

2.8

1.7

1.4

3.8

214.9

119.9

65.4

92.7

1.86 (0.87, 3.99)

4.06 (1.77, 9.33)^a

1.94 (0.95, 3.98)

2.36 (1.50, 3.73)^a

2017.09-2018.08

2.9

1.6

3.3

3.9

159.9

136.1

122.8

111.3

2.03 (0.94, 4.36)

1.83 (0.88, 3.81)

1.98 (0.97, 4.03)

1.94 (1.27, 2.97)^a

2018.09-2019.08

2.1

1.8

3.5

3.4

123.9

131.5

156.0

90.7

1.31 (0.60, 2.87)

1.21 (0.56, 2.59)

1.63 (0.76, 3.49)

1.37 (0.88, 2.14)

Age 45–64

2014.09-2015.08

15.5

17.0

16.3

29.3

632.7

824.9

614.7

590.8

2015.09-2016.08

15.9

15.7

16.4

35.2

747.3

772.0

594.6

633.4

1.11 (0.86, 1.44)

1.05 (0.77, 1.42)

0.86 (0.67, 1.12)

1.00 (0.85, 1.17)

2016.09-2017.08

24.6

14.8

16.7

31.8

1065.5

747.3

616.8

606.1

1.83 (1.42, 2.34)^a

1.64 (1.22, 2.19)^a

1.50 (1.17, 1.91)^a

1.65 (1.42, 1.91)^a

2017.09-2018.08

20.2

17.6

17.8

28.2

858.1

961.3

691.3

562.7

1.25 (0.98, 1.61)

1.29 (0.96, 1.73)

1.40 (1.09, 1.81)^a

1.31 (1.13, 1.53)^a

2018.09-2019.08

14.9

14.8

16.6

28.2

655.9

830.4

604.8

503.2

1.10 (0.85, 1.43)

1.04 (0.77, 1.42)

1.05 (0.80, 1.37)

1.07 (0.91, 1.25)

Age 65-

2014.09-2015.08

21.7

15.0

18.3

34.0

1255.7

1240.7

1365.9

1122.1

2015.09-2016.08

20.6

12.6

18.2

36.1

1128.7

955.2

1317.5

1164.1

1.15 (0.83, 1.61)

0.96 (0.70, 1.30)

0.90 (0.68, 1.18)

0.98 (0.82, 1.17)

2016.09-2017.08

30.8

13.3

19.1

33.9

1725.9

999.4

1338.8

1018.7

1.67 (1.22, 2.29)^a

1.38 (1.03, 1.85)^a

1.43 (1.10, 1.86)^a

1.48 (1.25, 1.74)^a

2017.09-2018.08

26.3

13.5

18.3

33.3

1501.3

1075.9

1190.3

1019.4

1.44 (1.05, 1.98)^a

1.25 (0.93, 1.69)

1.26 (0.96, 1.64)

1.30 (1.10, 1.54)^a

2018.09-2019.08

22.5

13.5

17.1

30.4

1094.7

1005.7

1106.6

907.6

1.26 (0.91, 1.75)

1.16 (0.85, 1.57)

1.18 (0.90, 1.56)

1.20 (1.00, 1.42)^a

Low income

2014.09-2015.08

13.9

12.8

14.7

27.3

185.7

229.6

215.6

189.3

2015.09-2016.08

14.2

10.9

15.0

29.6

188.1

198.2

219.3

198.8

1.20 (0.89, 1.62)

1.01 (0.76, 1.34)

0.95 (0.74, 1.22)

1.03 (0.88, 1.21)

2016.09-2017.08

23.8

10.4

15.3

29.3

299.4

187.1

205.1

190.2

2.13 (1.60, 2.84)^a

1.69 (1.29, 2.21)^a

1.63 (1.30, 2.06)^a

1.77 (1.52, 2.07)^a

2017.09-2018.08

17.4

13

15

28.6

219.4

220

205.7

182.5

1.25 (0.94, 1.67)

1.27 (0.96, 1.67)

1.24 (0.97, 1.58)

1.25 (1.07, 1.46)^a

2018.09-2019.08

15.2

10.6

15.3

24.8

192.7

171.1

206.9

150.8

1.35 (1.00, 1.82)^a

1.09 (0.82, 1.44)

1.26 (0.98, 1.62)

1.23 (1.05, 1.44)^a

High income

2014.09-2015.08

25.6

21.3

23.9

41.5

191.4

201.6

234.7

191.0

2015.09-2016.08

24.3

19.7

24.0

47.3

166.7

195.4

224.7

215.2

1.04 (0.83, 1.30)

0.96 (0.77, 1.19)

0.84 (0.69, 1.01)

0.93 (0.82, 1.06)

2016.09-2017.08

34.7

19.5

21.9

41.2

247.3

176.0

190.3

181.7

1.52 (1.23, 1.89)

1.53 (1.24, 1.88)

1.39 (1.16, 1.67)

1.47 (1.31, 1.65)^a

2017.09-2018.08

32.3

19.8

24.6

37.4

235.7

176.0

217.0

153.7

1.42 (1.15, 1.77)

1.29 (1.05, 1.59)

1.44 (1.19, 1.74)

1.38 (1.23, 1.56)^a

2018.09-2019.08

24.6

19.4

22.5

37.5

167.3

168.9

197.9

155.2

1.12 (0.89, 1.40)

1.09 (0.88, 1.35)

1.10 (0.91, 1.34)

1.10 (0.98, 1.25)