TABLE I

Relative risks of non-haemorrhagic events and corresponding proportions of study population and cerebrovascular cases with different ranges of plasma cholesterol values at first examination

Plasma cholesterol (mmol/l)lNo (%) of study population6 Year follow up12 Year follow up
No (%) of casesRelative risk (95% confidence interval)No (%) of casesRelative risk* 95% (Confidence interval)
<51983 (15.7)48 (14.9)1.0094 (14.7)1.00
5-64042 (32.0)93 (28.7)0.80 (0.87 to 1.79)183 (28.7)0.86 (0.66 to 1.12)
6-73688 (29.2)96 (29.6)0.80 (0.87 to 1.79)189 (29.6)0.85 (0.66 to 1.11)
7-81857 (14.7)50 (15.4)0.78 (0.84 to 1.95)105 (16.5)0.88 (0.72 to 1.19)
8-9631 (5.0)17 (5.2)0.71 (0.79 to 2.51)44 (6.9)0.99 (0.68 to 1.45)
>9429 (3.4)20 (6.2)1.38 (0.79 to 2.41)13 (3.6)1.43 (0.89 to 2.32)
  • *Relative to plasma total cholesterol <5 mmol/l, based on 12 year follow up. Adjusted for age, sex, length of school education, combination of household income and marital status, cigarette smoking, consumption of >10 g alcohol/day, body mass index, systolic blood pressure, diabetes, and triglycerides.