25 Interestingly, the present Japanese semen values are close to the WHO reference values, and the fifth percentiles for sperm concentration and total sperm count are 18 million/ml (WHO reference 15 million/ml) and 38 million (WHO reference 39 million), respectively.
Associations between the ranked MethyLight data and categorized semen values (Table 1) were tested using simple linear regression, with the semen characteristic categories scored as 0: low, 1: mid, 2: high.
To study the semen analysis values required to cause a pregnancy after vasectomy reversal (VR).
The aim of their study was to identify the preoperative parameters that predict improvement in postoperative semen values and variables that predict pregnancy after surgery.
Ejaculates were obtained by masturbation after 2 7 days of sexual abstinence and all semen values were determined in accordance with the then current WHO criteria [17].
Since Holstein haplotypes 1 through 5 (HH1 to HH5) and DUMPS occur early in pregnancy, they were assigned a value of $40 based on reproductive costs (e.g., cost of semen, value of days open) included in the 2014 revision of the NM$ index [ 19].
Although neither exam date nor recruitment period was associated with any of the semen parameters (all p-values > 0.24), we retained recruitment period in all final models.
After microscopic varicocelectomy, all the semen parameters and DFI significantly improved compared with preoperative values.
The semen parameter categories were not mutually exclusive (i.e., a man could be classified as having below reference values for more than one of the sperm parameters).
