Table 1 Baseline characteristics

From: Left ventricular hypertrophy by electrocardiogram as a predictor of success in home blood pressure control: HOMED-BP study

   

Usual control (n=1261)

Tight control (n=1288)

 

Total (n=2549)

No. of missing

Achieved (n=892)

Not achieved (n=369)

Achieved (n=576)

Not achieved (n=712)

Women, n (%)

1302 (51.2)

0

468 (52.5)

173 (46.9)

314 (54.5)

347 (48.7)*

Age, years

60.0±9.9

0

59.9±9.5

60.9±10.2

58.7±9.4

60.8±10.6‡

Body mass index, kg m−2

24.4±3.4

21

24.4±3.5

24.3±3.4

24.5±3.2

24.3±3.5

Current smoker, n (%)

534 (20.9)

0

164 (18.4)

94 (25.5)†

126 (21.9)

150 (21.1)

Current habitual drinking, n (%)

1242 (48.7)

0

415 (46.5)

188 (50.0)

282 (49.0)

357 (50.1)

Previous cardiovascular disease, n (%)

80 (3.1)

0

21 (2.4)

10 (2.7)

21 (3.6)

28 (3.9)

Duration of state of hypertension (years)

4.3±6.6

14

4.2±6.3

4.7±6.7

4.4±7.1

4.0±6.3

Laboratory blood test

 Hemoglobin, g dl−1

14.1±1.4

13

14.2±1.4

14.1±1.4

14.1±1.4

14.1±1.5

 White blood cells, 103 μl−1

5.95±1.57

21

5.86±1.51

6.09±1.64*

5.94±1.50

6.03±1.65

 Platelets, 104 μl−1

23.7±5.7

42

23.5±5.5

23.7±6.5

23.9±5.6

23.7±5.8

 γ-glutamyltransferase, IU l−1

29 (11–138)

41

29 (12–137)

32 (12–179)*

28 (11–133)

29 (11–128)

 AST, IU l−1

23 (15–45)

14

23 (15–44)

23 (15–47)

22 (15–42)

22 (15–41)

 ALT, IU l−1

21 (11–57)

8

20 (11–55)

21 (11–52)

21 (11–57)

20 (10–52)

 Urea nitrogen, mg dl−1

14.4 (9.6–21.6)

447

14.7 (9.7–21.7)

15.0 (9.0–21.9)

14.0 (9.5–21.0)

14.6 (9.8–22.0)†

 eGFR, ml min−1 1.73 m−2

72.8±17.3

22

73.2±17.0

72.9±18.6

74.3±16.9

71.2±17.1†

 Creatinine, mg dl−1

0.75 (0.50–1.10)

22

0.74 (0.50–1.10)

0.78 (0.50–1.12)

0.70 (0.50–1.10)

0.80 (0.50–1.11)‡

 Uric acid, mg dl−1

5.40±1.41

55

5.40±1.40

5.42±1.40

5.31±1.41

5.46±1.42

 Sodium, mEq mol−1

141.4±2.2

127

141.5±2.2

141.3±2.4

141.4±2.1

141.4±2.2

 Potassium, mEq mol−1

4.1 (3.6–4.9)

125

4.1 (3.6–4.9)

4.2 (3.6–4.9)

4.1 (3.6–4.9)

4.1 (3.5–5.0)

 Chloride, mEq mol−1

103.4±2.6

136

103.3±2.5

103.2±2.7

103.6±24

103.3±2.8

 Total cholesterol, mg dl−1

209 (157–269)

13

208 (157–269)

209 (151–268)

210 (159–273)

207 (157–268)

 Plasma glucose, mg dl−1

104.9±30.6

106

105.0±29.9

106.3±33.2

103.8±29.0

105.0±31.3

 Proteinuria, n (%)

405 (16.7)

117

128 (15.1)

74 (21.2)†

88 (15.9)

115 (16.9)

Indexes of electrocardiogram

 Sokolow–Lyon voltage, mV

2.57±0.87

0

2.53±0.84

2.68±0.88†

2.48±0.84

2.63±0.90†

 Cornell product, mm·ms

1573±705

0

1529±700

1595±658

1576±676

1615±752

  1. Abbreviations: ALT, alanine aminotransferase; AST, aspartate aminotransferase; eGFR, estimated glomerular filtration rate. Values are shown as number of patients (percentage) or mean±s.d. for continuous variables while γ-glutamyltransferase, AST, ALT, blood urea nitrogen, creatinine, potassium and total cholesterol are shown as median (5–95% confidence intervals). Proteinuria that was diagnosed in the protein reading on dip-stick testing was ⩾1+. Formulae of the indexes of electrocardiogram are shown in Figure 1. Usual control: 125–134 mm Hg in systolic home blood pressure; Tight control: <125 mm Hg in systolic home blood pressure. Significance of the difference between the achieved and not achieved groups: *P<0.05; †P<0.01, and ‡P<0.001.
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