In 1997, the educational difference did not reach statistical significance.
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Contribution of education level and dairy fat sources to serum cholesterol in Russian and Finnish Karelia: results from four cross-sectional risk factor surveys in 1992-2007.
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The sentences
In addition, using butter on bread was significantly associated with cholesterol in Pitkäranta when adjusting for sex, age and study year (Table 2 , Model 2); however, it fell slightly short of significance in the two other models.