Table 4.

Observed Frequencies for mtDNA Haplogroups in Non-AP, Pure SAP, and Pure MAP

	Results in Populationa
	Non-AP		Pure MAP		Pure SAP		All
mtDNAHaplogroup	n	f	n	f	n	f	n	f
Hb	95	61.29	70	42.94	37	47.44	202	51.01
J	8	5.16	16	9.82	5	6.41	29	7.32
KU	25	16.13	32	19.63	16	20.51	73	18.43
Rest	23	14.84	30	18.40	17	21.79	70	17.68
Tc	4	2.58	15	9.20	3	3.85	22	5.56
Total	155	100.00	163	100.00	78	100.00	396	100.00

^aSamples were considered to be pure MAP when they show <50% and ⩾25% of progressive motile spermatozoa and ⩾20 × 10⁶ spermatozoa per milliliter. Samples were considered to be pure SAP when they showed <25% of progressive motile spermatozoa and ⩾20 × 10⁶ spermatozoa per milliliter. χ²=16.988 for haplogroup distribution vs. pure SAP, pure MAP, or Control (8 df; P=.0302). n = indicates the number of individuals; f = frequency, expressed as a percentage.

^bHaplogroup H contribution to χ²=5.49. Difference in frequency distribution from the expected values for haplogroup H in non-AP: P=.001.

^cHaplogroup T contribution to χ²=6.78. Difference in frequency distribution from the expected values for haplogroup T in AP: P=.008.