Incidence of disability/1000 person-years of follow-up
| Treatment group | Cases | Mean years survival time | Person-years | Disability developed in | Incidence/100 person-years |
| Completed treatment MDT | 146 | 4.08 | 594.7 | 16 | 2.69 |
| Defaulters of MDT | 59 | 4.78 | 281.9 | 08 | 2.84 |
| Early (<6 months of treatment) | 38 | 5.12 | 194.9 | 06 | 3.08 |
| Late (6–11 months of treatment) | 21 | 4.14 | 87.0 | 02 | 2.30 |
| All | 205 | 4.28 | 876.6 | 24 | 2.74 |
MDT, multidrug therapy.