Fig. 3

Prevalence of Systemic Diseases. Breakdown of the commonest systemic diseases found in 1380 (47.4%) of the 2913 patients. The values at the top of the columns give the percentages of the systemic disease patients (left), and the percentage of all patients (right). Others included pregnancy induced hypertension, thyroid disorders, systemic lupus erythematosus, meningitis/encephalitis, anaemia, human immunodeficiency virus, Marfans syndrome, etc