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Table 2 Incidence rates (IR) per 10,000 person-years at risk and unadjusted hazard ratios (HR). n = 6147; AMI = 191

From: The ratio of total cholesterol to high density lipoprotein cholesterol and myocardial infarction in Women’s health in the Lund area (WHILA): a 17-year follow-up cohort study

Variable AMI Incidence rates Unadjusted HR
n IR 95% CI HR (95% CI)
Age
 50–54 51 15.3 11.7–20.4 1 (Reference)
 55–59 90 17.6 14.4–21.7 1.17 (0.83–1.65)
 60–64 50 27.9 21.3–37.3 1.89 (1.21–2.80)
Education
 Low-Middle 136 20.7 17.6–24.6 1.40 (1.02–1.91)
 High 55 15.0 11.6–19.7 1 (Reference)
Smoking
 Non-smoker 81 13.4 10.8–16.8 1 (Reference)
 Former smoker 39 18.7 13.8–26.1 1.41 (0.96–2.06)
 Daily smoker 71 34.1 27.2–43.4 2.58 (1.88–3.56)
WHR
 Small (≤0.78) 78 13.6 10.6–16.4 1 (Reference)
 Large (> 0.78) 113 25.0 20.8–30.2 1.87 (1.40–2.50)
Blood pressure (mmHg)
 SBP < 140 & DBP < 90 83 15.4 12.5–19.3 1 (Reference)
 SBP 140–149 or DBP 90–99 55 19.9 15.4–26.2 1.30 (0.92–1.83)
 SBP ≥ 150 or DBP ≥ 100 53 25.3 19.4–33.5 1.66 (1.17–2.34
TC/HDL-C ratio
 ≤ 3.5 74 13.3 10.7–16.9 1 (Reference)
 > 3.5 - ≤ 4.0 28 17.0 11.9–25.2 1.28 (0.83–1.98)
 > 4.0 - ≤ 5.0 46 24.6 18.6–33.3 1.84 (1.27–2.67)
 > 5.0 43 36.3 27.2–49.7 2.75 (1.88–4.02)
NDI
 Affluent areas 40 12.8 9.5–17.8 1 (Reference)
 Deprived areas 151 21.2 18.1–25.0 1.65 (1.16–2.34)
  1. AMI Acute myocardial infarction, WHR Waist-hip-ratio, SBP Systolic blood pressure, DBP Diastolic blood pressure, CNI Care Need Index