Table 2

Baseline characteristics of the study population, divided into quartiles based on BNP
BNP quartile 1 2 3 4 p value
BNP range (ng/L) 10-51 52-102 103-191 192-4200
(n = 100) (n = 101) (n = 101) (n = 100)
BNP (ng/L) mean ± SD 31.2 ± 10.9 74.8 ± 14.4 148.7 ± 24.7 471.2 ± 492.3 p < 0.001
(n = 100) (n = 101) (n = 101) (n = 100) b, c, e, f
Male sex (%) 35 (n = 35) 26.7 (n = 27) 29.7 (n = 30) 26 (n = 26) p = 0.49
Age (years) mean ± SD 81.1 ± 7.3 84.8 ± 6.5 87.1 ± 5.5 87.2 ± 6.1 p < 0.001
(n = 100) (n = 101) (n = 101) (n = 100) a, b, c
P-glucose (mmol/L) mean ± SD 6.0 ± 2,5 5.5 ± 1.5 5.6 ± 1.6 5.5 ± 1.7 p = 0.21
(n = 96) (n = 95) (n = 99) (n = 95)
hs CRP (mg/L) mean ± SD 3.7 ± 2.8 4.0 ± 2.7 3.5 ± 2.5 4.2 ± 2.6 p = 0.22
(n = 68) (n = 67) (n = 68) (n = 59)
TSH (mIE/L) mean ± SD 2.8 ± 3.8 1.7 ± 1.8 1.9 ± 2.2 1.7 ± 1.1 p = 0.003
(n = 100) (n = 99) (n = 101) (n = 100) a, b, c
BMI (kg/m2) mean ± SD 26.8 ± 5 24.8 ± 4.6 24.0 ± 4.4 23.9 ± 4.8 p < 0.001
(n = 98) (n = 98) (n = 101) (n = 98) a, b, c
eGFR (ml/min/1.73 m2) mean ± SD 51.1 ± 15.2 46.1 ± 14.8 41.0 ± 15.1 39.5 ± 16.3 p < 0.001
(n = 100) (n = 101) (n = 99) (n = 99) b, c, e
Hb in men (g/L) mean ± SDHb in women (g/L) mean ± SD 135.3 ± 13.7 128.7 ± 14.1 125.7 ± 13.9 123.0 ± 17.4 p = 0.010
(n = 35) (n = 25) (n = 29) (n = 25) c
125.2 ± 12.7 125.7 ± 13.0 124.2 ±13.8 122.6 ±14.7 p = 0.54
(n = 63) (n = 72) (n = 68) (n = 70)
Systolic blood pressure (mmHg) mean ± SD 134.8 ± 19.6 132.8 ± 20.7 136.0 ± 26.9 131.3 ± 25.8 p = 0.47
(n = 97) (n = 97) (n = 99) (n = 95)
Diastolic blood pressure (mmHg) mean ± SD 74.0 ± 10.1 73.5 ± 11,5 70.2 ± 12.0 70.7 ± 12.5 p = 0.045
(n = 97) (n = 97) (n = 99) (n = 95)
HF diagnosis n (%) 7 (7) 4 (4) 17 (16.8) 32 (32) p < 0.001
c, d, e
Hypertension diagnosis n (%) 31 (31) 27(26.7) 34 (33.7) 33 (33) p = 0.71
MMSE result mean ± SD 17.0 ± 6.6 17.0 ± 6.6 17.2 ± 7.0 17.2 ± 5.8 p = 0.89
(n = 80) (n = 87) (n = 92) (n = 88)

Significant difference between BNP quartiles 1–4, is presented as:

1 and 2: a.

1 and 3: b.

1 and 4: c.

2 and 3: d.

2 and 4: e.

3 and 4: f.

Bolmsjö et al.

Bolmsjö et al. BMC Geriatrics 2013 13:118   doi:10.1186/1471-2318-13-118

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