Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Characteristics of MGH men (n =159).
| Variable | Mean ± SD |
|---|---|
| Age | 35 ± 5 |
| BMI (kg/m2) | 28 ± 5 |
| Race | N (%) |
| White | 137 (86) |
| Black | 5 (3) |
| Other | 17 (11) |
| Hispanic ethnicity No |
149 (94) |
| Yes | 10 (6) |
| Semen Concentration | |
| < 15 million/mL | 16 (10) |
| Semen Morphology | |
| < 4% normal | 28 (18) |
| Semen Motility | |
| < 32% motile | 33 (21) |
| Abstinence time | |
| < =2 days | 35 (22) |
| 3–4 days | 74 (47) |
| > =5 days | 50 (32) |
| Smoking (n = 2 missing) | |
| No | 116 (74) |
| Current smoker | 11 (7) |
| Former smoker | 30 (19) |
