Study on the Mass-Screening of After-Meal Serum Triglyceride Concentration

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  • 健康診断における食後中性脂肪値のスクリーニングレベルの検討
  • 調査報告 健康診断における食後中性脂肪値のスクリーニングレベルの検討
  • チョウサ ホウコク ケンコウ シンダン ニ オケル ショク ゴ チュウセイ シボウチ ノ スクリーニングレベル ノ ケントウ

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The serum triglyceride concentration (TG) tested in health checks after meals cannot properly sort out hypertriglyceridemia with reference to the upper normal limit of fasting TG (150 mg/dl) set by the Japan Arteriosclerosis Society, because TG goes up considerably after a meal. In our survey of a large number of health check examinees (free of abnormal biochemical data other than TG and diseases under medical treatment), the mean (M) of fasting TG+2 standard deviations (SD) was close to 150 mg/dl. When the screening level was set at M+2SD for each time span after a meal, the ratio of the screened was distributed between 19.9 and 21.8%, which was close to 23.5%, the ratio of the screened on fasting. Accordingly, the nearest round number ending with zero for the first digit is suggested to be of practical use for the screening level of after-meal TG. The average TG in females was definitely lower than that of males, though proportionately increasing with age. The ratio of the screened among females aged between 20 and 49 was 5.3% on fasting and 3.2-5.8% for after-meal time spans, and that of the screened aged in their fifties was 11.3% and 8.2-12.9% respectively.

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