Table 1 Characteristics of the study population.
From: Effect of telomere length and related gene polymorphism in signaling pathway on semen quality
Characteristics | N | Data | Percentage of normal(%) |
|---|---|---|---|
Age (years)a | 1349 | 29.49 ± 5.63 | |
BMI (kg/m2)a | 1313 | 24.92 ± 4.00 | |
Smoking statusb | 1349 | ||
Current smokers | 719(53.30) | ||
Never and ever smokers | 630(46.70) | ||
Alcohol usage b | 1334 | ||
Users | 556(41.68) | ||
Non users | 778(58.32) | ||
Education | |||
Elementary school level | 55(4.34) | ||
Secondary school level | 596(47.04) | ||
College level | 347(27.39) | ||
Bachelor’s degree or above | 269(21.23) | ||
Sperm telomere length (STL) | 536 | 0.86(0.62,1.33) | |
Semen parameters | |||
Semen volume (mL) | 1254 | 3.38 ± 1.49 | 93.39 |
Sperm concentration(millions/mL) | 1258 | 65.16 ± 52.06 | 88.88 |
Total sperm number (millions) | 1258 | 209.70 ± 152.78 | 88.88 |
Progressive motility (%) | 1258 | 47.10 ± 18.65 | 80.22 |
Total sperm motility (%) | 1258 | 59.82 ± 19.76 | 86.02 |
VCL | 1258 | 55.54 ± 13.18 | |
VSL | 1258 | 35.50 ± 9.10 | |
STR | 1349 | 63.32 ± 26.42 | |
LIN | 1349 | 59.70 ± 25.05 | |
Normal morphological (%) | 1108 | 3.06 ± 2.79 | 32.46 |
TZI | 1108 | 1.80 ± 0.71 | |
SDI | 1108 | 1.77 ± 0.96 |
