Table 1.
Study population characteristics at baseline
| Variable | Incident | Prevalent | All | ||
|---|---|---|---|---|---|
| Cases (n = 47) | Controls (n = 47) | Cases (n = 18) | Controls (n = 18) | All (n = 130) | |
| Age | |||||
| Mean (SD) | 55.7 (2.9) | 55.9 (2.8) | 54.2 (2.3) | 54.6 (2.2) | 55.4 (2.8) |
| Min–max | 52–61 | 52–61 | 51–60 | 52–60 | 51–61 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| BMI | |||||
| Mean (SD) | 24.7 (3.3) | 24.7 (3.3) | 24.3 (4.3) | 24.3 (3.2) | 24.6 (3.4) |
| Min–max | 19.7–38.4 | 18–33 | 16.8–33.1 | 18.9–32 | 16.8–38.4 |
| Number non-missing | 44 | 42 | 17 | 17 | 120 |
| Smoking condition | |||||
| Yes or former/no (N) | 12/34 | 12/35 | 1/17 | 4/14 | 29/100 |
| % | 26/74 | 26/74 | 6/94 | 22/78 | 22/78 |
| Number non-missing | 46 | 47 | 18 | 18 | 129 |
| Alcohol use | |||||
| Grams per day, 0/0.1–11.9 /> = 12 (N) | 4/32/10 | 8/33/5 | 6/10/1 | 5/11/1 | 23/86/17 |
| % | 9/70/22 | 17/72/11 | 35/59/6 | 29/65/6 | 18/68/13 |
| Number non-missing | 46 | 46 | 17 | 17 | 126 |
| Systolic blood pressure (SBP) | |||||
| Mean (SD) | 132 (17.1) | 126 (13.5) | 129 (19.8) | 130 (17.3) | 129.1 (16.3) |
| Min–max | 105–165 | 100–157 | 95–180 | 110–165 | 95–180 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| Diastolic blood pressure (DBP) | |||||
| Mean (SD) | 84.6 (10.5) | 81.9 (8.6) | 84.9 (9.9) | 82.9 (8.1) | 83.5 (9.4) |
| Min–max | 70–110 | 67–100 | 60–105 | 70–100 | 60–110 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| TG (Triglycerides) | |||||
| Mean (SD) | 1.8 (0.9) | 1.5 (0.7) | 1.6 (0.8) | 1.6 (1.0) | 1.7 (0.8) |
| Min–max | 0.7–4.3 | 0.6–3.9 | 0.7–3.5 | 0.6–5.2 | 0.6–5.2 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| TC (Total cholesterol) | |||||
| Mean (SD) | 5.8 (1.2) | 5.9 (1.0) | 5.9 (1.2) | 6.0 (1.2) | 5.9 (1.1) |
| Min–max | 3.2–8.4 | 3.5–8.3 | 4.1–8.2 | 4.4–8.4 | 3.2–8.4 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| HDL-C (High-Density Lipoprotein Cholesterol) | |||||
| Mean (SD) | 1.7 (0.4) | 1.7 (0.4) | 1.8 (0.4) | 1.8 (0.4) | 1.7 (0.4) |
| Min–max | 0.8–2.6 | 1.0–2.6 | 1.3–2.6 | 1.1–2.4 | 0.8–2.6 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| LDL-C (Low-Density Lipoprotein Cholesterol) | |||||
| Mean (SD) | 3.4 (1.1) | 3.3 (0.7) | 3.3 (1.1) | 3.4 (1.2) | 3.4 (1.0) |
| Min–max | 1.2–6.3 | 1.7–4.9 | 2.0–5.7 | 1.9–5.9 | 1.1–6.3 |
| Number non-missing | 44 | 43 | 16 | 17 | 120 |
| Glucose | |||||
| Mean (SD) | 6.1 (1.0) | 6.0 (0.9) | 6.4 (2.8) | 5.9 (1.1) | 6.1 (1.4) |
| Min–max | 4.4–9.2 | 3.6–9.3 | 4.5–17 | 4.2–8.7 | 3.6–17 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
| ZRP (ng/ml) | |||||
| Mean (SD) | 61.2 (9.9) | 59.7 (10.7) | 63.2 (8.5) | 57.0 (9.7) | 60.4 (10.0) |
| Median (IQR) | 62.2 (14.5) | 61.3 (15.8) | 63.7 (14.6) | 58.3 (14.7) | 61.5 (14.8) |
| Min–max | 39.7–81.1 | 40.6–80.8 | 51.1–78.5 | 40.9–72.8 | 39.7–83.1 |
| Number non-missing | 47 | 47 | 18 | 18 | 130 |
BMI, Body Mass Index; SD, standard deviation; IQR, Interquartile Range