Table 2.
Baseline Data on Covariates According to Gender and Quintile of Serum Phosphorus Level, Atherosclerosis Risk in Communities Study, 1987–2001
| Variable | Serum Phosphorus Level (mg/dL) |
P Value | ||||
| <3.1 | 3.1–3.2 | 3.3–3.5 | 3.6–3.8 | >3.8 | ||
| No. of participants | ||||||
| Men | 2,007 | 1,092 | 1,555 | 946 | 523 | |
| Women | 1,050 | 883 | 1,943 | 1,984 | 2,012 | |
| Mean age, years | ||||||
| Men | 54.5 | 54.4 | 54.3 | 54.0 | 53.6 | 0.02 |
| Women | 52.8 | 53.0 | 53.5 | 54.0 | 54.4 | <0.0001 |
| Black race, % | ||||||
| Men | 20.4 | 20.7 | 23.3 | 22.7 | 28.8 | 0.0007 |
| Women | 33.4 | 28.7 | 28.7 | 28.3 | 27.3 | 0.01 |
| Mean body mass indexab | ||||||
| Men | 27.5 | 27.3 | 27.2 | 27.6 | 27.7 | 0.05 |
| Women | 29.2 | 28.5 | 27.8 | 27.6 | 26.7 | <0.0001 |
| Diabetes mellitusb, % | ||||||
| Men | 9.8 | 8.9 | 8.7 | 10.7 | 17.7 | <0.0001 |
| Women | 13.0 | 9.9 | 9.9 | 8.8 | 9.4 | 0.008 |
| Hypertensionb, % | ||||||
| Men | 32.4 | 30.6 | 28.1 | 32.4 | 35.3 | 0.01 |
| Women | 40.0 | 32.7 | 33.4 | 31.0 | 30.0 | <0.0001 |
| Current smokingb, % | ||||||
| Men | 24.2 | 26.4 | 27.4 | 30.9 | 33.7 | <0.0001 |
| Women | 15.1 | 18.6 | 22.0 | 26.5 | 33.1 | <0.0001 |
| Mean total cholesterol levelb, mg/dL | ||||||
| Men | 208.0 | 209.4 | 211.5 | 211.8 | 215.0 | 0.001 |
| Women | 213.2 | 212.6 | 217.3 | 217.6 | 222.6 | <0.0001 |
| Mean low density lipoprotein cholesterol levelb, mg/dL | ||||||
| Men | 138.4 | 138.2 | 139.1 | 138.9 | 139.8 | 0.92 |
| Women | 132.7 | 131.7 | 135.9 | 135.8 | 138.9 | <0.0001 |
| Mean high density lipoprotein cholesterol level, mg/dL | ||||||
| Men | 43.4 | 44.9 | 45.8 | 45.6 | 45.7 | <0.0001 |
| Women | 56.3 | 57.3 | 57.7 | 58.1 | 59.0 | 0.0008 |
| Mean total triglyceride levelb, mg/dL | ||||||
| Men | 132.7 | 135.1 | 137.7 | 144.9 | 167.7 | <0.0001 |
| Women | 122.0 | 117.9 | 120.2 | 119.8 | 124.3 | 0.20 |
| Mean estimated glomerular filtration ratebc, mL/minute/1.73 m2 | ||||||
| Men | 91.5 | 92.8 | 92.6 | 93.5 | 92.7 | 0.02 |
| Women | 95.4 | 94.5 | 93.5 | 94.2 | 94.1 | 0.08 |
| Mean fibrinogen levelb, mg/dL | ||||||
| Men | 295.1 | 294.4 | 293.4 | 295.9 | 298.4 | 0.60 |
| Women | 304.3 | 303.0 | 304.2 | 307.9 | 307.8 | 0.11 |
| Current estrogen use (women only)b, % | 25.2 | 25.5 | 20.2 | 18.5 | 13.8 | <0.0001 |
| Postmenopausal (women only)b, % | 71.7 | 69.7 | 73.9 | 77.7 | 81.6 | <0.0001 |
a
Weight (kg)/height (m)2.
b
P value and mean or percentage were adjusted for age.
c
Glomerular filtration rate calculated with the abbreviated modification of diet in renal disease equation (10).