Table 1.
Baseline Characteristics of the Study Participants in the Hordaland Health Study
| No. (%) | Median (IQR) | |||
|---|---|---|---|---|
| Neopterin (nmol/L) | KTR (nmol/µmol) | CRP (mg/L) | ||
| Overall | 6594 (100.0) | 7.6 (6.3-9.2) | 22.4 (18.4-27.7) | 1.6 (0.7-3.6) |
| Sex | ||||
| Men | 2958 (44.9) | 7.4 (6.2-9.0) | 22.4 (18.6-27.5) | 1.6 (0.7-3.5) |
| Women | 3636 (55.1) | 7.7 (6.4-9.4)a | 22.4 (18.2-27.8) | 1.5 (0.6-3.6) |
| Age, y | ||||
| 46-49 | 3632 (55.1) | 6.9 (5.9-8.2) | 20.0 (17.1-23.7) | 1.1 (0.5-2.6) |
| 70-74 | 2962 (44.9) | 8.6 (7.3-10.5)a | 26.1 (21.8-31.7)a | 2.2 (1.1-4.4)a |
| BMI | ||||
| Normal | 2976 (45.2) | 7.5 (6.3-9.1) | 21.4 (17.9-26.5) | 1.1 (0.5-2.4) |
| Overweight | 2809 (42.7) | 7.6 (6.4-9.3) | 22.9 (18.6-28.1) | 1.8 (0.9-3.8) |
| Obese | 797 (12.1) | 7.8 (6.4-9.7)a | 25.0 (19.9-30.4)a | 3.3 (1.7-6.6)a |
| Smoking | ||||
| Never smoker | 2597 (40.6) | 7.7 (6.5-9.4) | 22.6 (18.3-28.0) | 1.4 (0.6-3.2) |
| Former smoker | 2131 (33.3) | 7.9 (6.6-9.6) | 23.4 (19.3-29.0) | 1.6 (0.7-3.6) |
| Current smoker | 1668 (26.1) | 7.1 (5.9-8.6)a | 21.0 (17.5-25.4)a | 1.9 (0.8-4.0)a |
| Renal function | ||||
| Normal | 6000 (91.0) | 7.4 (6.3-8.9) | 21.8 (18.1-26.6) | 1.5 (0.6-3.4) |
| Impaired | 594 (9.0) | 10.1 (8.5-12.6)a | 31.4 (25.3-38.4)a | 2.6 (1.2-5.4)a |
Abbreviations: BMI, body mass index; CRP, C-reactive protein; IQR, interquartile range; KTR, kynurenine-to-tryptophan ratio.
Not all sums are equal to the total number of the participants due to missing values.
a
P<.01 for difference between groups.