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Table 3 Association of the characteristics of the index leprosy cases with seropositivity among the household contacts

From: Factors associated with anti-phenolic glycolipid-I seropositivity among the household contacts of leprosy cases

Variable Total of participants Anti PGL-I seropositivity PR 95 % CI P value
n n (%)
Operational classification      
 Paucibacillary 172 14 (8.1) 1   
 Multibacillary 204 36 (17.6) 2.17 1.22–3.86 0.009
Number of lesions      
 ≤5 244 29 (11.9) 1   
 >5 145 24 (16.6) 1.39 0.84–2.31 0.199
Clinical form      
 Indeterminate 113 13 (11.5) 1   
 Tuberculoid 73 3 (4.1) 0.36 0.11–1.16 0.087
 Borderline 119 19 (16.0) 1.39 0.72–2.69 0.332
 Virchownian 72 14 (19.4) 1.69 0.83–3.43 0.147
Slit skin smear status      
 Negative 199 26 (13.1) 1   
 Positive 103 13 (12.6) 0.97 0.52–1.81 0.914
Bacterial index      
 <2 21 3 (14.3) 1   
 ≥2 361 47 (13.0) 0.91 0.31–2.71 0.868
Degree of disability at diagnosis      
 Degree 0 215 19 (8.8) 1   
 Degree 1 136 22 (16.2) 1.83 1.02–3.26 0.041
 Degree 2 28 6 (21.4) 2.42 1.02–5.74 0.045
Number of damaged nerves      
 ≤1 70 5 (7.1) 1   
 >1 69 11 (15.9) 2.23 0.82–6.08 0.119
Year of diagnosis      
 2006 82 9 (11.0) 1   
 2007 76 14 (18.4) 1.68 0.77–3.68 0.197
 2008 79 10 (12.7) 1.15 0.50–2.68 0.741
 2009 82 9 (11.0) 1 0.42–2.38 1.000
 2010 47 5 (10.6) 0.97 0.35–2.70 0.952
 2011 339 5 (25.0) 2.28 0.82–6.35 0.116
  1. PR Prevalence ratio, 95 % CI 95 % confidence interval