Table 3. Hazard Ratios for Coronary Heart Disease Associated With Familial Hypercholesterolemia (FH) Variant Status.
FH variant status | Mean (SD) | Incidence rate per 1000 person-years (95% UI) | Hazard ratio (95% CI) | |||
---|---|---|---|---|---|---|
Baseline LDL-C | Time-weighted LDL-Ca | Model 1b | Model 2c | Model 3d | ||
Among participants with baseline detreated LDL-C 130-189 mg/dL (n = 8295) | ||||||
No FH variant | 152.4 (15.8) | 133.0 (11.7) | 8.7 (8.3-9.2) | 1 [Reference] | 1 [Reference] | 1 [Reference] |
FH variant | 165.8 (15.7) | 181.2 (15.9) | 11.5 (4.8-27.7) | 2.9 (1.4-6.0) | 2.6 (1.2-5.4) | 1.3 (0.6-2.9) |
Among participants with baseline detreated LDL-C ≥190 mg/dL (n = 1337) | ||||||
No FH variant | 218.5 (31.4) | 164.9 (18.2) | 12.2 (10.9-13.6) | 1 [Reference] | 1 [Reference] | 1 [Reference] |
FH variant | 257.6 (66.7) | 243.9 (36.7) | 14.0 (7.5-26.0) | 2.6 (1.4-4.9) | 2.4 (1.3-4.4) | 1.9 (0.9-3.9) |
Abbreviations: LDL-C, low-density lipoprotein cholesterol; UI, uncertainty interval.
Time-weighted mean (SD) LDL-C from age 20 years to study baseline was estimated using linear mixed-effects model.
Model 1 is adjusted for race, ethnicity, sex, smoking status, body mass index, high-density lipoprotein cholesterol, systolic blood pressure, diabetes, use of lipid-lowering medications, and use of antihypertensive medications and stratified by study cohort.
Model 2: model 1 and LDL-C at study baseline.
Model 3: model 1 and time-weighted average LDL-C from age 20 years to study baseline.