Table 3 Results of the semen analysis on the studied groups
From: Assessment of semen quality of taxi drivers exposed to whole body vibration
Quantitative Variable | Mean | Median | SD | IQR | P-value | ||
|---|---|---|---|---|---|---|---|
Volume (ml) | Taxi drivers | 3.68 | 3.25 | 1.98 | 2.88 | 0.142** | |
Office employees | 3.97 | 3.85 | 1.43 | 2.47 | |||
pH | Taxi drivers | 7.74 | 7.80 | 0.166 | 0.10 | 0.329** | |
Office employees | 7.56 | 7.80 | 0.711 | 0.10 | |||
Concentration (number of sperm per milliliter) (106ml per ml) | Taxi drivers | 52.74 | 50.00 | 46.02 | 59.25 | 0.103** | |
Office employees | 66.62 | 65.00 | 48.53 | 64.25 | |||
Total number of sperm in the entire ejaculate (106 ml) | Taxi drivers | 154.60 | 109.15 | 151.60 | 160.5 | 0.006** | |
Office employees | 321.65 | 209.00 | 433.84 | 239.4 | |||
Total Motility (PR + NPR) (%) | Taxi drivers | 40.28 | 42.05 | 22.61 | 35.1 | 0.002* | |
Office employees | 55.77 | 58.10 | 22.85 | 30.8 | |||
Progressive Motility (%) | Taxi drivers | 19.32 | 15.00 | 14.25 | 22.1 | 0.010** | |
Office employees | 27.31 | 27.00 | 14.25 | 18.5 | |||
Non-Progressive Motility (%) | Taxi drivers | 22.55 | 20.00 | 14.54 | 18.75 | 0.037** | |
Office employees | 28.45 | 26.00 | 13.83 | 13.85 | |||
Normal Morphology (%) | Taxi drivers | 2.76 | 3.00 | 1.77 | 3.00 | 0.766** | |
Office employees | 2.86 | 3.00 | 1.63 | 2.00 | |||
Abnormal Morphology (%) | Taxi drivers | 96.29 | 97.00 | 1.62 | 2.00 | 0.869** | |
Office employees | 97.13 | 97.00 | 1.63 | 2.00 | |||
Qualitative Variable | Number (%) | 0.304*** | |||||
Taxi drivers | Office employees | ||||||
Color | Light Grey | 34 (48.6) | 19 (27.1) | ||||
Dark Grey | 28 (40.0) | 40 (57.1) | |||||
Yellow Grey | 5 (7.2) | 5 (7.2) | |||||
Bright Yellow | 2 (2.8) | 5 (7.2) | |||||
Milky | 1 (1.4) | 1 (1.4) | |||||
Viscosity | Normal | 66 (94.3) | 58 (82.8) | 0.089*** | |||
Abnormal | 4 (5.7) | 12 (17.2) | |||||