Table 2.

Frequency of other Hb variants detected in school children in Mumbai and Delhi.

	Mumbai			Delhi			Total
	No. Studied	No.	%	No. Studied	No.	%	No. Studied	No.	%
Hb-D Punjab	5682	38	0.7	5408	59	1.1	11090	97	0.9
Hb-S trait	5682	9	0.2	5408	0	0	11090	9	0.1
βδ -Thal/ HPFH	5682	12	0.2	5408	14	0.3	11090	26	0.2
HbE trait	5682	2	0.04	5408	0	0	11090	2	0.02