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. 2020 Jul 2;107(2):330–341. doi: 10.1016/j.ajhg.2020.06.004

Table 2.

Semen Characteristics and Sperm Flagellar Morphology of Men Carrying Bi-allelic DNAH8 Variants

- Subject A051 Subject X003 Subject F0300 Reference Values
Semen Parameters

Semen volume (mL) 2.2 3.2 7.1 >1.5
Sperm concentration (106/mL) 39.1 42.7 13.6 >15.0
Total sperm count (106) 86.0 136.7 96.6 >39.0
Motility (%) 4.0 2.7 8.0 >40.0
Progressive motility (%) 1.3 1.5 4.0 >32.0

Sperm Flagellar Morphology

Absent flagella (%) 2.0 2.5 4.0 <5.0
Short flagella (%) 7.1 9.0 8.0 <1.0
Coiled flagella (%) 57.1 32.0 33.0 <17.0
Angulation (%) 0.5 6.0 19.0 <13.0
Irregular caliber (%) 1.0 26.0 8.0 <2.0
Normal flagella (%) 32.3 24.5 28.0 >23.0

Lower and upper reference limits are shown according to the World Health Organization standards46 and the distribution ranges of morphologically abnormal spermatozoa observed in fertile individuals.47

Abnormal values.