Is disability in leprosy still a burden? A cross-sectional study in a rural block in Tamil Nadu, India

Background: Leprosy, a disease caused by Mycobacterium leprae, is an important cause of preventable disability. Methods: The present cross-sectional study was undertaken among leprosy-affected persons in a rural block in Kanchipuram District, Tamil Nadu, India in the year 2013. The sample included treatment completed leprosy affected persons >= 18 y of age. Persons with difficulty in cognition and those who were not willing to participate in the study were excluded. Subjects were also graded for any deformities of the body using World Health Organization (WHO) disability grading. Results: The present study, carried out among 171 people affected with leprosy in a rural block, showed the lifetime prevalence of disability was 88.3% (95% confidence interval 83.4 to 93.1). The mean age of the study participants was 61.58 +/- 12.31 y with almost equal distribution of males (49.7%) and females (50.3%). WHO disability grading showed that 147 (86%) of the subjects were grade 2 (visible deformity) while only 4 (2.3%) were grade 1. It was found that education, occupation, income and duration since diagnosis had statistical significance with disability. Conclusions: Disability was observed more in males and the most common type of deformity was hand and foot deformity. Further studies are needed to assess those patients who completed treatment and recommends periodic neurological assessment of those in treatment.