Two hundred and twenty two patients with various benign diseases were tested with 4 types of delayed hypersensitive skin tests (PPD, PHA, Candida and SK-SD) and evaluated their nutritional status by hemoglobin, lymphocyte, serum albumin and ratio of weight to height before operation. The skin test index was calculated by using an equation: STI=log DT+log DC+log DP+log DS-0.4/4 (DT, DC, DP, DS: mean diameter of PPD, PHA, Candida and SK-SD). The STI was compared with nutritional parameters using linear regression.
The following results were obtained:
1) Subnormal response, namely, STI smaller than 1.0, existed in 42% of heart diseases, 23% with digestive benign diseases and 12.5% with other benign diseases.
2) STI was well related with hemoglobin and albumin in the heart diseases and digestivebenign diseases.
3) STI was significantly depressed in patients with NYHA classificationIII-IV.
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