Table 1.
Study sample characteristics of 12,161 Atherosclerosis Risk In Communities study participants at ARIC visit 3 (1993–95) overall and by race1
| Overall (n=12,161) | Whites (n=9,541) | African American (n=2,620) | ||||
|---|---|---|---|---|---|---|
| Characteristics | Kidney stone (n=974) | No kidney stone (n=11,187) | Kidney stone (n=871) | No kidney stone (n=8,670) | Kidney stone (n=103) | No kidney stone (n=2,517) |
| Age, yrs (SD) | 60.4 (5.8) | 60.0 (5.7) | 60.4 (5.8) | 60.3 (5.7) | 60.9 (5.8) | 59.0 (5.7) |
| Male gender, % (n) | 66.3 (646) | 42.3 (4,736) | 69.4 (604) | 44.2 (3,828) | 40.8 (42) | 36.1 (908) |
| ARIC center, % (n) | ||||||
| North Carolina | 40.7 (396) | 25.2 (2,818) | 43.0 (375) | 29.2 (2,533) | 20.4 (21) | 11.3 (285) |
| Jackson | 8.4 (82) | 20 (2,232) | NA | NA | 79.6 (82) | 88.7 (2,232) |
| Minnesota | 20.2 (197) | 28.5 (3,185) | 22.6 (197) | 36.7 (3,185) | NA | NA |
| Washington County | 30.7 (299) | 26.4 (2,952) | 34.3 (299) | 34.1 (2,952) | NA | NA |
| BMP2–3, kg/m2 (SD) | 28.3 (5.2) | 28.5 (5.5) | 28.1 (4.8) | 27.9 (5.2) | 30.8 (7.3) | 30.3 (6.3) |
| Waist circumference, cm (SD) | 101.6 (13.2) | 100.4 (14.4) | 101.3 (12.6) | 99.8 (14.0) | 104.1 (17.0) | 102.7 (15.6) |
| Diabetes, % (n) | 18.8 (183) | 14.6 (1,629) | 16.9 (147) | 11.9 (1,033) | 35.0 (36) | 23.7 (596) |
| Hypertension, % (n) | 40.0 (390) | 40.5 (4,531) | 37.0 (322) | 34.8 (3,015) | 66.0 (68) | 60.2 (1,516) |
| Triglycerides, mmol/l; median (IQR) | 1.5 (1.0–2.1) | 1.4 (1.0–1.9) | 1.5 (1.1–2.1) | 1.4 (1.0–2.0) | 1.3 (0.9–1.9) | 1.1 (0.8–1.5) |
| HDL cholesterol 2 , mmol/l (SD) | 1.2 (0.4) | 1.4 (0.5) | 1.2 (0.4) | 1.3 (0.5) | 1.4 (0.6) | 1.4 (0.5) |
| Uric acid, mg/dl (SD) | 6.5 (1.4) | 6.2 (1.5) | 6.5 (1.4) | 6.1 (1.4) | 6.5 (1.5) | 6.4 (1.6) |
| Gout 3 , % (n) | 9.2 (79) | 5.8 (570) | 8.6 (67) | 5.1 (400) | 15.4 (12) | 8.3 (170) |
| Gallstone, % (n) | 16.5 (161) | 12 (1,339) | 16.2 (141) | 13.4 (1,158) | 19.4 (20) | 7.2 (181) |
1
Data presented as percentage (n) for categorical variables and mean (SD) for continuous variables. Triglycerides are shown as median (25th and 75th percentile).
2
Abbreviations: BMI= body mass index, HDL= high-density lipoprotein, NA= Not applicable.
3
BMI was measured in 12,157 ARIC participants, 9,537 whites and 2,620 African Americans. Gout information was available for 10,689 participants, 8,564 whites and 2,125 African Americans.