TABLE 7.
Geometric mean platelet count by quartiles of serum cholesterol measures in adult participants in NHANES 2005–2008
| NHANES Survey 2005–2006 (N = 4,469) | NHANES Survey 2007–2008 (N = 5,318) | |||
| Platelet Mean (1,000 cells/ul) | 95% CI | Platelet Mean (1,000 cells/ul) | 95% CI | |
| HDL-C (mg/dl) | ||||
| Unadjusteda | ||||
| Low | 266.77 | 262.27, 271.35 | 254.34 | 249.15, 259.64 |
| Medium | 272.99 | 267.17, 278.94 | 258.86 | 255.19, 262.59 |
| High | 274.79 | 268.12, 281.63 | 260.47 | 255.32, 265.73 |
| Very high | 273.28 | 268.62, 278.02 | 259.96 | 255.30, 264.71 |
| Trend P value | 0.024 | 0.073 | ||
| Adjustedb | ||||
| Low | 271.46 | 267.00, 276.00 | 256.08 | 251.13, 261.13 |
| Medium | 274.84 | 269.27, 280.53 | 259.89 | 256.56, 263.26 |
| High | 271.50 | 266.01, 277.10 | 258.73 | 252.44, 265.17 |
| Very high | 270.45 | 265.91, 275.08 | 257.08 | 251.18, 263.12 |
| Trend P value | 0.492 | 0.852 | ||
| Non-HDL-C (mg/dl) | ||||
| Unadjusteda | ||||
| Low | 259.68 | 251.66, 267.96 | 244.00 | 239.61, 248.47 |
| Medium | 270.31 | 265.28, 275.43 | 256.39 | 251.18, 261.71 |
| High | 279.11 | 274.45, 283.84 | 263.99 | 259.95, 268.10 |
| Very high | 279.51 | 273.91, 285.23 | 268.28 | 264.20, 272.43 |
| Trend P value | <0.001 | <0.001 | ||
| Adjustedb | ||||
| Low | 257.58 | 249.80, 265.59 | 242.74 | 238.06, 247.51 |
| Medium | 270.06 | 265.51, 274.69 | 256.27 | 250.50, 262.17 |
| High | 280.11 | 275.75, 284.54 | 263.91 | 260.87, 266.99 |
| Very high | 280.99 | 276.08, 285.99 | 268.62 | 265.17, 272.11 |
| Trend P value | <0.001 | <0.001 | ||
Cholesterol quartiles were determined from NHANES 2005-2006 and are as follows: HDL-C [low (≤41.83 mg/dl), medium (>41.83–51.38 mg/dl), high (>51.38–62.93 mg/dl), and very high (>62.93 mg/dl)]; and nonHDL-C [low (≤114.42 mg/dl), medium (>114.42–140.1 mg/dl), high (>140.1–168.28 mg/dl), and very high (>168.28 mg/dl)]. CI, confidence interval.
a
Unadjusted model.
b
Adjusted for age, race/ethnicity, gender, smoking, and BMI.