Table 5 Adjusted hazard ratios for composite events per 1-log unit increment in log BNP among subgroups stratified by clinical parameters.

From: Plasma B-type natriuretic peptide is independently associated with cardiovascular events and mortality in patients with chronic kidney disease

 

No. of patients

No. of events

HR (95% CI)

P

P for interaction

Age

 Low (< 70.6 years)

539

60

1.42 (1.05, 1.92)

0.02

0.06

 High (≥ 70.6 years)

539

188

1.11 (0.94, 1.32)

0.23

Sex

 Male

695

173

1.26 (1.06, 1.50)

0.01

0.09

 Female

383

75

1.23 (0.90, 1.69)

0.19

Diabetes mellitus

 Absence

698

142

1.36 (1.10, 1.68)

 < 0.01

0.09

 Presence

380

106

1.09 (0.88, 1.35)

0.44

Dyslipidemia

 Absence

306

63

1.27 (0.93, 1.74)

0.13

0.41

 Presence

772

185

1.20 (1.00, 1.42)

0.04

Prior CVDs

 Absence

694

103

1.21 (0.94, 1.55)

0.14

0.37

 Presence

384

145

1.18 (0.98, 1.42)

0.08

SBP

 Low (< 131.8 mmHg)

539

116

1.35 (1.08, 1.69)

 < 0.01

0.18

 High (≥ 131.8 mmHg)

539

132

1.13 (0.92, 1.39)

0.25

BMI

 Low (< 22.9 kg/m2)

539

145

1.28 (1.05, 1.56)

0.02

0.17

 High (≥ 22.9 m2)

539

103

1.12 (0.88, 1.41)

0.36

CRP

 Low (< 0.9 mg/L)

515

103

1.34 (1.05, 1.72)

0.02

0.43

 High (≥ 0.9 mg/L)

563

145

1.14 (0.93, 1.38)

0.20

Serum albumin

 Low (< 3.5 g/dL)

528

143

1.21 (0.99, 1.46)

0.06

0.62

 High (≥ 3.5 g/dL)

550

105

1.28 (1.00, 1.64)

0.048

eGFR

 Low (< 30.3 mL/min/1.73 m2)

539

151

1.10 (0.91, 1.32)

0.34

0.86

 High (≥ 30.3 mL/min/1.73 m2)

539

97

1.31 (1.03, 1.67)

0.03

LVEF

 Low (< 69.3%)

534

133

1.17 (0.95, 1.44)

0.14

0.80

 High (≥ 69.3%)

544

115

1.27 (1.02, 1.59)

0.03

LAD

 Low (< 39 mm)

534

87

1.04 (0.81, 1.34)

0.78

0.52

 High (≥ 39 mm)

544

161

1.31 (1.09, 1.57)

 < 0.01

LVMI

 Low (< 118.0 g/m2)

539

80

1.27 (0.97, 1.67)

0.09

0.47

 High (≥ 118.0 g/m2)

539

168

1.21 (0.999, 1.45)

0.05

  1. CV cardiovascular, BNP B-type natriuretic peptide, HR hazard ratio, CI confidence interval, CVD cardiovascular disease, SBP systolic blood pressure, BMI body mass index, CRP C-reactive protein, eGFR estimated glomerular filtration rate, LVEF left ventricular ejection fraction, LAD left atrial diameter, LVMI left ventricular mass index.