Table 5.

Incidence of disability/100 person-years at risk

	Cases	Mean PY	Person-years at risk (PYAR)	New disability cases	Incidence/100 PYAR
Completed MDT treatment	592	4.40	2597.4	13	0.50*
Defaulters of MDT	198	4.72	933.7	4	0.43*
Early (<3 months)	142	4.87	691.4	3	0.43
Late (3–5 month)	56	4.33	242.3	1	0.41
All	789	4.48	3531.1	17	0.48

MDT,multidrug therapy; PY, person-years; PYAR, person-years at risk.

*Log rank test= 0.23, p=0.63.