Sindhi Sub groups

β-Thalassaemia

HbD

HbQ

N No.of β-thal trait (%) N No. HbD trait (%) No. HbD homozygote No. HbD-β thal (%) N No. HbQ trait (%) No. HbQ-β thal (%)
Sahiti 227 21(9.25) 227 6 (2.64) - - 227 1 (0.44) -
Ghotki 261 47(18.01) 261 10 (3.83) - 1 (0.79) 261 - -
Ladkana 477 72(15.09) 477 7 (0.79) - 1 (0.79) 477 5 (1.05) 1 (0.21)
Sakhru 127 26(20.47) 127 1 (0.79) - 1 (0.79) 127 - -
Mixed Others* 180 25(13.89) 180 2 (1.11) - - 180 - -
Unspecified 226 26(11.50) 226 2 (0.88) - - 226 - -
Total 1498 217(14.49) 1498 28 (1.87) - 3 (0.20) 1498 6 (0.40) 1 (0.07)
N= number tested
*1 case of HPFH heterozygote in Chhapru Sindhis
χ2 test of homogeneity: β-thal 12.85 (df 5), p < 0.05 significant
                                   HbD 40.91 (df 15), p < 0.001 significant
                                   HbQ 9.84 (df 10), p > 0.05 insignificant
Table 1: Distribution of the abnormal haemoglobins and β Thalassaemia status among the Sindhi subgroups of Nagpur city.