Table 1 Basic characteristics of the participants

From: The risk of withdrawal from hypertension treatment in coastal areas after the Great East Japan Earthquake: the TMM CommCohort Study

 

All

Inland area (all)

Inland area

Coastal area (all)

Coastal area

     

No damage

Partially destroyed

More than half destroyed

  

No damage

Partially destroyed

More than half destroyed

 

(n = 9218)

(n = 5860)

(n = 1924)

(n = 3378)

(n = 558)

(n = 3358)

(n = 707)

(n = 1394)

(n = 1257)

Age, years

65.5

(6.3)

65.3

(6.3)

65.6

(6.4)

65.3

(6.1)

64.7

(6.4)

65.7

(6.4)

65.8

(6.7)

65.9

(6.1)

65.4

(6.7)

Sex

  Male

4468

(48.5)

2874

(49.0)

896

(46.6)

1700

(50.3)

278

(49.8)

1594

(47.5)

328

(46.4)

675

(48.4)

591

(47.0)

  Female

4750

(51.5)

2986

(51.0)

1028

(53.4)

1678

(49.7)

280

(50.2)

1764

(52.5)

379

(53.6)

719

(51.6)

666

(53.0)

BMI, kg/m2

24.8

(3.5)

24.7

(3.5)

24.8

(3.6)

24.7

(3.5)

24.8

(3.4)

24.8

(3.4)

24.6

(3.4)

24.7

(3.4)

25.1

(3.5)

SBP, mmHg

132.4

(15.8)

132.3

(15.7)

132.7

(15.9)

132.2

(15.6)

131

(15.9)

132.7

(16.0)

133.1

(15.8)

131.7

(16.5)

133.5

(15.5)

DBP, mmHg

78.7

(9.9)

78.8

(10.0)

78.6

(10.1)

79.0

(9.9)

78.6

(10.1)

78.5

(9.8)

78.9

(9.7)

78.0

(9.8)

78.9

(9.8)

Smoking status

  Current smoker

1057

(11.5)

668

(11.4)

228

(11.9)

373

(11.0)

67

(12.0)

389

(11.6)

80

(11.3)

149

(10.7)

160

(12.7)

  Ex-smoker

2779

(30.2)

1755

(30.0)

545

(28.3)

1034

(30.6)

176

(31.5)

1024

(30.5)

213

(30.1)

433

(31.1)

378

(30.1)

  Never smoker

5142

(55.8)

3293

(56.2)

1113

(57.9)

1884

(55.8)

296

(53.1)

1849

(55.1)

396

(56.0)

764

(54.8)

689

(54.8)

  Unknown

240

(2.6)

144

(2.5)

38

(2)

87

(2.6)

19

(3.4)

96

(2.9)

18

(2.6)

48

(3.4)

30

(2.4)

Drinking status

  Current drinker

5129

(55.6)

3303

(56.4)

1037

(53.9)

1957

(57.9)

309

(55.4)

1826

(54.4)

395

(55.9)

790

(56.7)

641

(51.0)

  Ex-drinker

287

(3.1)

186

(3.2)

63

(3.3)

103

(3.1)

20

(3.6)

101

(3.0)

19

(2.7)

37

(2.7)

45

(3.6)

  Never drinker

3724

(40.4)

2316

(39.5)

803

(41.7)

1289

(38.2)

224

(40.1)

1408

(41.9)

291

(41.2)

557

(40.0)

560

(44.6)

  Unknown

78

(0.9)

55

(0.9)

21

(1.1)

29

(0.9)

5

(0.9)

23

(0.7)

2

(0.3)

10

(0.7)

11

(0.9)

Having psychological distress

  Yes

3378

(36.7)

2062

(35.2)

618

(32.1)

1225

(36.3)

219

(39.3)

1316

(39.2)

235

(33.2)

528

(37.9)

553

(44.0)

  No

5666

(61.5)

3691

(63.0)

1276

(66.3)

2090

(61.9)

325

(58.2)

1975

(58.8)

463

(65.5)

841

(60.3)

671

(53.4)

  Unknown

174

(1.9)

107

(1.8)

30

(1.6)

63

(1.9)

14

(2.5)

67

(2.0)

9

(1.3)

25

(1.8)

33

(2.6)

Social network status

  Socially isolated

2090

(22.7)

1307

(22.3)

475

(24.7)

712

(21.1)

120

(21.5)

783

(23.3)

189

(26.7)

317

(22.7)

277

(22.0)

  Socially connected

6709

(72.8)

4297

(73.3)

1365

(71.0)

2525

(74.8)

407

(72.9)

2412

(71.8)

489

(69.2)

1011

(72.5)

912

(72.6)

  Unknown

419

(4.6)

256

(4.4)

84

(4.4)

141

(4.2)

31

(5.6)

163

(4.9)

29

(4.1)

66

(4.7)

68

(5.4)

Educational background

  Elementary/junior high/high school

6686

(72.6)

4226

(72.1)

1417

(73.7)

2439

(72.2)

370

(66.3)

2460

(73.3)

519

(73.4)

1004

(72.0)

937

(74.5)

  Vocational school/junior college/technical college

1650

(17.9)

1088

(18.6)

332

(17.3)

628

(18.6)

128

(22.9)

562

(16.7)

108

(15.3)

237

(17.0)

217

(17.3)

  University or higher

787

(8.5)

495

(8.5)

161

(8.4)

280

(8.3)

54

(9.7)

292

(8.7)

70

(9.9)

138

(9.9)

84

(6.7)

  Other

65

(0.7)

38

(0.7)

12

(0.6)

21

(0.6)

5

(0.9)

27

(0.8)

6

(0.9)

9

(0.7)

12

(1.0)

  Unknown

30

(0.3)

13

(0.2)

2

(0.1)

10

(0.3)

1

(0.2)

17

(0.5)

4

(0.6)

6

(0.4)

7

(0.6)

Having a spouse

  Yes

7629

(82.8)

4884

(83.3)

1565

(81.3)

2850

(84.4)

469

(84.1)

2745

(81.8)

574

(81.2)

1178

(84.5)

993

(79.0)

  No

1516

(16.5)

934

(15.9)

346

(18)

503

(14.9)

85

(15.2)

582

(17.3)

129

(18.3)

204

(14.6)

249

(19.8)

  Unknown

73

(0.8)

42

(0.7)

13

(0.7)

25

(0.7)

4

(0.7)

31

(0.9)

4

(0.6)

12

(0.9)

15

(1.2)

Having children

  Yes

8453

(91.7)

5394

(92.1)

1737

(90.3)

3127

(92.6)

530

(95.0)

3059

(91.1)

650

(91.9)

1273

(91.3)

1136

(90.4)

  No

275

(3.0)

177

(3.0)

68

(3.5)

99

(2.9)

10

(1.8)

98

(2.9)

19

(2.7)

49

(3.5)

30

(2.4)

  Unknown

490

(5.3)

289

(4.9)

119

(6.2)

152

(4.5)

18

(3.2)

201

(6.0)

38

(5.4)

72

(5.2)

91

(7.2)

Living with family

  Yes

8388

(91.0)

5370

(91.6)

1727

(89.8)

3125

(92.5)

518

(92.8)

3018

(89.9)

642

(90.8)

1270

(91.1)

1106

(88.0)

  No

678

(7.4)

400

(6.8)

159

(8.3)

206

(6.1)

35

(6.3)

278

(8.3)

58

(8.2)

100

(7.2)

120

(9.6)

  Unknown

152

(1.7)

90

(1.5)

38

(2.0)

47

(1.4)

5

(0.9)

62

(1.9)

7

(1.0)

24

(1.7)

31

(2.5)

Ever been diagnosed with diabetes

  Yes

2009

(21.8)

1280

(21.8)

386

(20.1)

787

(23.3)

107

(19.2)

729

(21.7)

150

(21.2)

325

(23.3)

254

(20.2)

  No

2892

(31.4)

1854

(31.6)

594

(30.9)

1074

(31.8)

186

(33.3)

1038

(30.9)

234

(33.1)

450

(32.3)

354

(28.2)

  Unknown

4317

(46.8)

2726

(46.5)

944

(49.1)

1517

(44.9)

265

(47.5)

1591

(47.4)

323

(45.7)

619

(44.4)

649

(51.6)

Ever been diagnosed with dyslipidemia

  Yes

2987

(32.4)

1801

(30.7)

558

(30.6)

1035

(30.6)

178

(31.9)

1186

(35.3)

246

(34.8)

530

(38.0)

410

(32.6)

  No

2296

(24.9)

1525

(26.0)

481

(25.0)

907

(26.9)

137

(24.6)

771

(23.0)

177

(25.0)

320

(23.0)

274

(21.8)

  Unknown

3935

(42.7)

2534

(43.2)

855

(44.4)

1436

(42.5)

243

(43.6)

1401

(41.7)

284

(40.2)

544

(39.0)

573

(45.6)

Employment status

  Employed

3841

(41.7)

2640

(45.1)

799

(41.5)

1555

(46.0)

286

(51.3)

1201

(35.8)

227

(32.1)

491

(35.2)

483

(38.4)

  Unemployed

5225

(56.7)

3141

(53.6)

1102

(57.3)

1776

(52.6)

263

(47.1)

2084

(62.1)

467

(66.1)

881

(63.2)

736

(58.6)

  Unknown

152

(1.7)

79

(1.4)

23

(1.2)

47

(1.4)

9

(1.6)

73

(2.2)

13

(1.8)

22

(1.6)

38

(3.0)

Fiscal year of survey participation

  FY2013

1728

(18.8)

583

(10.0)

209

(10.9)

309

(9.2)

65

(11.7)

1145

(34.1)

165

(23.3)

408

(29.3)

572

(45.5)

  FY2014

4204

(45.6)

2400

(41.0)

737

(38.3)

1398

(41.4)

265

(47.5)

1804

(53.7)

444

(62.8)

759

(54.5)

601

(47.8)

  FY2015

3286

(35.7)

2877

(49.1)

978

(50.8)

1671

(49.5)

228

(40.9)

409

(12.2)

98

(13.9)

227

(16.3)

84

(6.7)

Estimated daily salt intake, g/day

  >9.77

4598

(49.9)

2936

(50.1)

941

(48.9)

1731

(51.2)

264

(47.3)

1662

(49.5)

357

(50.5)

689

(49.4)

616

(49.0)

  ≤9.77

4599

(49.9)

2916

(49.8)

981

(51.0)

1641

(48.6)

294

(52.7)

1683

(50.1)

348

(49.2)

699

(50.1)

636

(50.6)

  Unknown

21

(0.23)

8

(0.1)

2

(0.1)

6

(0.2)

0

(0.0)

13

(0.4)

2

(0.3)

6

(0.4)

5

(0.4)

Treatment status of hypertension

  Under HTTx

8878

(96.3)

5666

(96.7)

1862

(96.8)

3261

(96.5)

543

(97.3)

3212

(95.7)

671

(94.9)

1326

(95.1)

1215

(96.7)

  Withdrawal from HTTx

340

(3.7)

194

(3.3)

62

(3.2)

117

(3.5)

15

(2.7)

146

(4.3)

36

(5.1)

68

(4.9)

42

(3.3)

  1. The values in the table are presented as means (standard deviations) for continuous variables and as numbers (percentage) for categorical variables
  2. BMI body mass index, DBP diastolic blood pressure, HTTx treatment for hypertension, SBP systolic blood pressure
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