Table 2. NAT2 SNP frequencies observed in the present study.

SNP identifier	Amino Acid	No.	Observedfrequency (%)	Expectedfrequency (%)	Hardy Weingberg’s P
rs1801280 ( NAT2*5 )
T/T	114 Ile/Ile	162	32.14	31.64
T/C	114 Ile/Thr	243	48.22	49.22	0.647
C/C	114 Thr/Thr	99	19.64	19.14
rs1799930 ( NAT2*6 )
G/G	197 Arg/Arg	263	52.18	52.88
G/A	197 Arg/Gln	207	41.07	39.68	0.430
A/A	197 Gln/Gln	34	6.75	7.44
rs1799931 ( NAT2*7 )
G/G	286 Gly/Gly	464	92.06	91.84
G/A	286 Gly/Glu	38	7.54	7.99	0.209
A/A	286 Glu/Glu	2	0.40	0.17
rs1801279 ( NAT2*14 )
G/G	64 Arg/Arg	504	100.0	100.0
G/A	64 Arg/Gln	0	000.0	00.0	(–.–)
A/A	64 Gln/Gln	0	000.0	00.0

Expected frequencies are calculated from observed allele frequency.