Document Classification

Section Type: RESULTS

Text: When compared with the control group at five years, the surgery group had a total plasma cholesterol level 23. 3 percent lower (4. 71 + / - 0. 91 vs. 6. 14 + / - 0. 89 mmol per liter [mean + / - SD] ; P less than 0. 0001), a low-density lipoprotein cholesterol level 37. 7 percent lower (2. 68 + / - 0. 78 vs. 4. 30 + / - 0. 89 mmol per liter ; P less than 0. 0001), and a high-density lipoprotein cholesterol level 4. 3 percent higher (1. 08 + / - 0. 26 vs. 1. 04 + / - 0. 25 mmol per liter ; P = 0. 02).