Logistic regression analyses to determine predictors of constriction

OR, Odds ratio; CI, Confidence interval; P, the probability that the effect of the characteristic on constriction in this study occurred by chance alone, given that there is truly no relationship between the characteristic and re-admission to hospital;*Pulse rate more than 100 beats per minute, Systolic blood pressure less than 100 mmHg and or tamponade requiring pericardiocentesis; HIV, human immunodeficiency virus;**None of the HIV sero-positive group developed clinical features of constriction. Therefore, this factor was not entered in the logistic regression model.