Table 3 P-values for testing the null hypothesis of no clustering of leprosy per se, MB leprosy, PB leprosy and of seropositivity due to genetic, household and spatial effects.

Total population

Leprosy per se

560

5.5%

<0.001

0.084

0.145

MB^a leprosy

541^c

2.2%

0.002

0.005

0.105

PB^b leprosy

545^d

2.9%

0.311

0.154

0.555

Seropositivity

432

8.6%

0.016

0.118

0.003

Population <21 and >39 years

Leprosy per se

424

4.5%

<0.001

0.002

0.017