Table 1.
Participant characteristics across quintiles of serum calcium: The ARIC Study, 2011–2013
| Visit 5 | Calcium Quintiles | ||||
|---|---|---|---|---|---|
| 7.0–9.0 mg/dL | 9.1–9.2 mg/dL | 9.3–9.3 mg/dL | 9.4–9.6 mg/dL | 9.7–13.0 mg/dL | |
| N | 1210 | 1113 | 627 | 1379 | 882 |
| Demographics | |||||
| Age in years, Mean (SD) | 75.2 (5.1) | 75 (4.9) | 75.3 (5.0) | 75.4 (5.1) | 75.9 (5.2) |
| Men, N (%) | 743 (61.4) | 549 (49.3) | 231 (36.8) | 438 (31.8) | 170 (19.3) |
| Whites, N (%) | 1094 (90.4) | 950 (85.4) | 497 (79.3) | 1038 (75.3) | 601 (68.1) |
| Body Mass Index, kg/m2, Mean (SD) | 27.7 (4.9) | 28.4 (5.1) | 28.6 (5.5) | 28.8 (5.8) | 28.9 (5.9) |
| Medical Information | |||||
| Current Smoker, N (%) | 62 (5.4) | 68 (6.5) | 35 (6.0) | 88 (6.9) | 66 (8.1) |
| Former Smoker, N (%) | 642 (55.7) | 549 (52.3) | 310 (52.8) | 616 (47.9) | 376 (46.0) |
| Current Drinker, N (%) | 642 (55.7) | 549 (52.3) | 310 (52.8) | 616 (47.9) | 376 (46.0) |
| Former Drinker, N (%) | 289 (24.7) | 294 (27.1) | 168 (27.8) | 385 (28.7) | 251 (29.6) |
| Diabetes, N (%) | 279 (23.3) | 311 (28.1) | 189 (30.4) | 425 (31.1) | 322 (36.7) |
| Hypertension, N (%) | 776 (64.7) | 757 (68.6) | 452 (72.7) | 1042 (76.3) | 695 (79.9) |
| Systolic Blood Pressure, mm Hg, Mean (SD) | 130 (17) | 130 (17) | 129 (18) | 130 (18) | 132 (19) |
| Diastolic Blood Pressure, mm Hg, Mean (SD) | 66 (10) | 67 (10) | 67 (11) | 67 (11) | 67 (11) |
| Heart rate, bpm, mean (SD) | 64 (10) | 64 (10) | 66 (12) | 66 (11) | 67 (12) |
| Sport index, mean (SD) | 2.7 (0.8) | 2.7 (0.8) | 2.6 (0.8) | 2.5 (0.8) | 2.5 (0.8) |
| Prevalent CHD, N (%) | 155 (13) | 130 (11.9) | 58 (9.4) | 109 (8.1) | 67 (7.7) |
| Laboratory Data | |||||
| Low density lipoprotein cholesterol, mg/dL, | |||||
| Mean (SD) | 103 (33) | 105 (33) | 106 (36) | 107 (34) | 107 (33) |
| High-density lipoprotein cholesterol, mg/dL, | |||||
| Mean (SD) | 51 (15) | 52 (13) | 53 (13) | 54 (14) | 54 (14) |
| Total cholesterol, mg/dL, Mean (SD) | 178 (41) | 182 (40) | 184 (43) | 187 (42) | 187 (41) |
| Triglyceride, mg/dL, Mean (SD) | 120 (58) | 126 (66) | 125 (60) | 128 (66) | 129 (64) |
| eGFR category, N (%) | |||||
| ≥90 mL/min per 1.73 m2 | 104 (8.6) | 110 (9.9) | 52 (8.3) | 121 (8.8) | 83 (9.4) |
| 60-<90 mL/min per 1.73 m2 | 833 (68.8) | 758 (68.1) | 418 (66.7) | 884 (64.1) | 497 (56.4) |
| <60 mL/min per 1.73 m2 | 273 (22.6) | 245 (22.0) | 157 (25.0) | 374 (27.1) | 302 (34.2) |
| Medications | |||||
| Antihypertensives, N (%) | 781 (64.6) | 762 (68.6) | 452 (72.2) | 1054 (76.5) | 691 (78.5) |
| Cholesterol lowering drugs, N (%) | 613 (50.9) | 601 (54.3) | 341 (54.6) | 743 (54.2) | 504 (57.6) |
| Diabetic Medications, N (%) | 147 (12.2) | 161 (14.5) | 112 (17.9) | 274 (20.0) | 219 (25.0) |
eGFR = estimated glomerular filtration rate