Table 4 Adjusted hazard ratios for CV 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

48

1.35 (0.97, 1.89)

0.08

0.07

 High (≥ 70.6 years)

539

110

1.18 (0.94, 1.48)

0.15

Sex

 Male

695

114

1.32 (1.06, 1.63)

0.01

0.14

 Female

383

44

1.44 (0.94, 2.19)

0.09

Diabetes mellitus

 Absence

698

85

1.38 (1.05, 1.81)

0.02

0.06

 Presence

380

73

1.16 (0.89, 1.52)

0.26

Dyslipidemia

 Absence

306

36

1.60 (1.06, 2.41)

0.03

0.20

 Presence

772

122

1.25 (1.01, 1.56)

0.04

Prior CVDs

 Absence

694

63

1.36 (1.004, 1.85)

0.047

0.41

 Presence

384

95

1.19 (0.94, 1.51)

0.14

SBP

 Low (< 131.8 mmHg)

539

71

1.41 (1.05, 1.89)

0.02

0.23

 High (≥ 131.8 mmHg)

539

87

1.20 (0.93, 1.55)

0.15

BMI

 Low (< 22.9 kg/m2)

539

86

1.33 (1.04, 1.72)

0.03

0.45

 High (≥ 22.9 kg/m2)

539

72

1.18 (0.89, 1.56)

0.26

CRP

 Low (< 0.9 mg/L)

515

67

1.23 (0.91, 1.67)

0.18

0.82

 High (≥ 0.9 mg/L)

563

91

1.27 (0.99, 1.63)

0.06

Serum albumin

 Low (< 3.5 g/dL)

528

85

1.18 (0.92, 1.51)

0.19

0.39

 High (≥ 3.5 g/dL)

550

73

1.35 (1.01, 1.81)

0.04

eGFR

 Low (< 30.3 mL/min/1.73 m2)

539

90

1.20 (0.94, 1.54)

0.14

0.84

 High (≥ 30.3 mL/min/1.73 m2)

539

68

1.24 (0.92, 1.69)

0.16

LVEF

 Low (< 69.3%)

534

82

1.08 (0.84, 1.39)

0.53

0.28

 High (≥ 69.3%)

544

76

1.52 (1.15, 2.02)

 < 0.01

LAD

 Low (< 39 mm)

534

49

1.09 (0.76, 1.56)

0.64

0.41

 High (≥ 39 mm)

544

109

1.34 (1.08, 1.68)

0.01

LVMI

 Low (< 118.0 g/m2)

539

50

1.43 (0.99, 2.08)

0.06

0.32

 High (≥ 118.0 g/m2)

539

108

1.26 (1.00, 1.58)

0.049

  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.