Table 1 Baseline characteristics of patients with newly diagnosed hypertension

Age, N (%)

 20 ~ 49

5,769

5,434

(94.2)

335

(5.8)

<.0001

 50 ~ 59

6,251

5,588

(89.4)

663

(10.6)

 60 ~ 69

7,977

6,131

(76.9)

1,846

(23.1)

 ≥70

8,309

3,328

(40.0)

4,981

(60.0)

Sex, N (%)

 Male

13,632

9,712

(71.2)

3,920

(28.8)

0.0001

 Female

14,674

10,769

(73.4)

3,905

(26.6)

Health insurance type, N (%)

 National health insurance

27,681

20,123

(72.7)

7,558

(27.3)

<.0001

 Medical aid

625

358

(57.3)

267

(42.7)

Income, N (%)

 Low (≤20th percentile)

4,801

3,192

(66.5)

1,609

(33.5)

<.0001

 Middle (21st–80th percentile)

14,541

10,766

(74.0)

3,775

(26.0)

 High (≥81st percentile)

8,964

6,523

(72.8)

2,441

(27.2)

Carstairs index, N (%)

 Disadvantaged neighborhood (below median)

15,855

11,458

(72.3)

4,397

(27.7)

0.6101

 Advantaged neighborhood (above median)

12,451

9,023

(72.5)

3,428

(27.5)

Combined individual household income level-neighborhood deprivation, N (%)

 High-Advantaged neighborhood

4,177

3,050

(73.0)

1,127

(27.0)

<.0001

 High-Disadvantaged neighborhood

4,787

3,473

(72.5)

1,314

(27.5)

 Middle-Advantaged neighborhood

6,246

4,639

(74.3)

1,607

(25.7)

 Middle-Disadvantaged neighborhood

8,295

6,127

(73.9)

2,168

(26.1)

 Low-Advantaged neighborhood

2,028

1,334

(65.8)

694

(34.2)

 Low-Disadvantaged neighborhood

2,773

1,858

(67.0)

915

(33.0)

Residential area, N (%)

 Metropolitan

12,470

9,303

(74.6)

3,167

(25.4)

<.0001

 Urban

12,039

8,712

(72.4)

3,327

(27.6)

 Rural

3,797

2,466

(65.0)

1,331

(35.0)

Charlson comorbidity index, N (%)

 0–1

15,875

12,842

(80.9)

3,033

(19.1)

<.0001

 2

5,584

4,106

(73.5)

1,478

(26.5)

 3

3,121

1,992

(63.8)

1,129

(36.2)

 ≥4

3,726

1,541

(41.4)

2,185

(58.6)

Number of risk factors, N (%)

 None

11,600

7,344

(63.3)

4,256

(36.7)

 with diabetes or dyslipidemia

13,232

10,075

(76.1)

3,157

(23.9)

 with diabetes and dyslipidemia

3,474

3,062

(88.1)

412

(11.9)

Disability, N (%)

 Normal

25,361

18,835

(74.3)

6,526

(25.7)

<.0001

 Mild disability

1,950

1,260

(64.6)

690

(35.4)

 Severe disability

995

386

(38.8)

609

(61.2)

Number with health screenings during follow-up period, N (%)

 1

16,022

9,338

(58.3)

6,684

(41.7)

<.0001

 2

4,062

3,419

(84.2)

643

(15.8)

 ≥3

8,222

7,724

(93.9)

498

(6.1)