Jittima Leelatheerakul. Comparison of risk ratio in hemorrhoids patients treated by cissus quadrangularis L. versus the conventional treatment. Master's Degree(Biostatistics). Mahidol University. : Mahidol University, 2005.
Comparison of risk ratio in hemorrhoids patients treated by cissus quadrangularis L. versus the conventional treatment
Abstract:
The purpose of this study was to evaluate the effects of Cissus quadrangularis L. (Pet-sang-kart) versus the conventional treatment for curing hemorrhoids patients. Secondary data from a phase III clinical trial were used in a logistic regression model. The data consisted of 526 patients with hemorrhoids, of whom 52 experienced an improvement in the severity of hemorrhoids, while 474 did not. The selected model could explain 12.5% of total variation and an adjusted risk ratio was estimated. The model included severity of hemorrhoids, treatment (Petsang-kart, Daflon, and placebo) and interaction of hemorrhoid severity with treatments. The risk ratio result showed that patients with severe hemorrhoids who used Pet-sang-kart had 1.46 times greater improvement in severe hemorrhoid symptoms, compared with patients who received the other treatments (risk ratio = 1.46), while other risk ratio values were close to 1 (risk ratio = 1.07, 0.95 for Petsang-kart and Daflon, in moderate hemorrhoid patients, respectively).