Table 4.

Distribution of mutant alleles of dhfr, dhps, Pfcrt, and Pfmdr among P. falciparum isolates from Jazan among Saudi and non-Saudi patients

	dhfr alleles				dhps alleles		Pfcrt alleles		Pfmdr1 alleles
	51N	51I	108S	108N	437A	437G	74M/75N/76K	74I/75E/76T	86N	86Y	184Y	184F
Saudi
Resident	89	46	88	47	135	0	0	123	89	39	3	123
Visitors	6	0	5	1	7	0	0	7	6	0	1	6
Total	95	46	93	48	143	0	0	130	95	39	4	129
Expatriates
Resident	5	2	5	2	8	1	0	9	7	2	0	8
Visitors	18	10	18	10	28	0	2	23	16	10	1	22
Total	23	12	23	12	36	1	2	32	23	12	1	30
Total	118	58	116	60	178	1	2	162	118	53	5	160
Total	176		176		179		164		171		165
χ2*	0.001		0.012		NC†		NC		0.839		1.254
P value‡	0.978		0.914		NC		NC		0.36		0.534
OR§	0.989		1.043		NC		NC		0.693		1.032

^*Degree of freedom (df) for all χ² = 1 except for Pfmdr1/184 allele (df = 2).

^†Not calculated (NC), because the sample was less than two in either resistant (dhps) or sensitive (Pfcrt) alleles.

^‡P values in calculated alleles were > 0.05; thus, all are non-significant, and all hypotheses are accepted.

^§OR calculated at 95% confidence interval.