Table 5

Multivariable-adjusted PR of race/ethnicity, % change in PR, IDI and NRI for CCS ≥10 when NMR-measured lipoproteins were added to referent model

Robust Poisson regression modelsPR (95% CI)% change in PR compared with model II*IDI (SE)NRI (SE)
Model I2.03 (1.23 to 3.34)
Model II2.10 (1.24 to 3.48)
Model II-A1.86 (1.07 to 3.26)−11.430.000 (0.002)0.028 (0.025)
Model II-B2.08 (1.18 to 3.47)−1.000.000 (0.000)0.006 (0.005)
Model II-C1.98 (1.18 to 3.31)−5.710.003 (0.002)−0.004 (0.025)
Model II-D2.01 (1.26 to 3.47)−4.300.000 (0.000)0.006 (0.011)
Model III-A1.75 (1.05 to 3.08)−16.670.003 (0.003)−0.006 (0.031)
Model III-B1.80 (1.07 to 3.24)−14.290.000 (0.002)0.026 (0.025)
Model IV-A1.73 (1.02 to 3.08)−17.620.003 (0.003)−0.021 (0.033)
Model IV-B1.79 (1.07 to 3.23)−14.760.001 (0.002)0.028 (0.022)
  • Model I: race, age, BMI, pack-year of smoking, hypertension, diabetes, triglyceride, LDL-C, HDL-C.

  • Model II-A: model II+large HDL-P.

  • Model II-B: model II+HDL particle size.

  • Model II-C: model II+VLDL particle size.

  • Model II-D: model II+large VLDL-P.

  • Model III-A: model II+large HDL-P+VLDL particle size.

  • Model III-B: model II+large HDL-P+large VLDL-P.

  • Model IV-A: model II+total LDL-P+large HDL-P+VLDL particle size.

  • Model IV-B: model II+total LDL-P+large HDL-P+large VLDL-P.

  • Reclassification categories for NRI: <5.0%, 5.0%–9.9%, 10.0%–19.9% and high ≥20%.

  • CRP, triglycerides, ethanol intake, large VLDL-P and medium VLDL-P were log transformed after addition of one unit. All other continuous variables were standardised.

  • *Per cent change in PR for race compared with model II was calculated as: ((PR for race/ethnicity in model II)–(PR for race/ethnicity in each model (model II-A to IV-B)))×100/(PR for race/ethnicity in model II).

  • †Model II (referent model): model I+alcohol intake+CRP+fibrinogen.

  • CRP, C reactive protein; HDL-C, high-density lipoprotein cholesterol; HDL-P, high-density lipoprotein particles; IDI, Integrated Discrimination Improvement;LDL-C, low-density lipoprotein cholesterol; LDL-P, low-density lipoprotein particles; NRI, Net Reclassification Improvement; PR, prevalence ratio; VLDL-P, very low-density lipoprotein particles.