Geometric mean concentrations of N-terminal pro brain natriuretic peptide in different age and sex groups in the undivided study sample
| Age (years) | Sex | N | NT-proBNP (pmol/l)* | Age (years)** | ||
|---|---|---|---|---|---|---|
| *Geometric mean (95% confidence interval). | ||||||
| **Median (5th to 95th centiles). | ||||||
| §Trend in the plasma concentration of NT-proBNP over age groups analysed by analysis of variance: p<0.0001. | ||||||
| †Two sample t test; ‡Mann–Whitney test, women v men. | ||||||
| NT-proBNP, N-terminal pro brain natriuretic peptide. | ||||||
| All | All | 672 | 35.7 (32.8 to 38.9) | 68.1 (52.6 to 86.1) | ||
| Women | 382 | 42.6 (38.2 to 47.4) | p<0.0001† | 69.9 (52.8 to 87.2) | p=0.0006‡ | |
| Men | 290 | 28.5 (25.0 to 32.6) | 65.2 (52.5 to 83.1) | |||
| 50–59 | All | 174 | 16.1 (14.0 to 18.6)§ | 54.9 (51.5 to 58.8) | ||
| Women | 90 | 18.3 (15.3 to 21.8) | p=0.05† | 55.2 (51.4 to 58.8) | NS‡ | |
| Men | 84 | 14.2 (11.4 to 17.5) | 54.6 (51.7 to 58.7) | |||
| 60–69 | All | 204 | 27.2 (24.1 to 30.5)§ | 64.8 (60.7 to 69.5) | ||
| Women | 103 | 32.6 (27.8 to 38.3) | p=0.002† | 64.7 (60.7 to 69.5) | NS‡ | |
| Men | 101 | 22.5 (19.1 to 26.6) | 64.8 (60.7 to 69.5) | |||
| 70–79 | All | 174 | 51.4 (44.8 to 59.0)§ | 75.0 (70.7 to 79.6) | ||
| Women | 102 | 54.9 (45.9 to 65.6) | NS† | 74.6 (70.8 to 78.7) | p=0.03‡ | |
| Men | 72 | 46.9 (37.8 to 58.1) | 75.9 (70.7 to 79.8) | |||
| ⩾80 | All | 120 | 108 (90.5 to 128)§ | 84.1 (80.3 to 89.8) | ||
| Women | 87 | 104 (85.6 to 126) | NS† | 84.5 (80.3 to 90.1) | NS‡ | |
| Men | 33 | 118 (81.2 to 172) | 82.6 (80.7 to 88.5) | |||