Table 1

Distribution of basic semen variables, SCSA results, fraction of Y-chromosome bearing sperms and potential confounders among 189 Swedish fishermen.


Mean
SD
Median
5–95%

Exposure variables




MeHg (μg/L)
2.9
2.4
2.3
0.5–6.9
CB-153 (ng/g lipid)
240
190
190
62–640
Outcome variables




A+B motile (%)
57
21
62
17–85
Sperm concentration (106/ml)
58
44
48
10–166
Total sperm count (× 106)
184
160
134
23–500
DFI* (%)
19
12
15
6–39
HDS** (%)
10
7
8
4–25
Y-chromosomes (%)
51.2
1.74
51.1
48.7–54.6
Potential confounders




Age (years)
47
9
47
32–60
Abstinence time (days)
3.7
2.6
3.0
1–9
BMI (kg/m2)
27
3
27
22–32
Current smokers (%)
23



Sexually transmitted diseases (%) ***
14



Disorders in reproductive organs (%) ****
6



Season of sampling (%)




     Spring
34



     Summer
31



     Autumn
35



     Winter
0




* DNA Fragmentation Index, ** High DNA Stainable

*** gonorrhoea, Chlamydia, **** varicocele, inguinal hernia, retentio testis

Rignell-Hydbom et al. Environmental Health 2007 6:14   doi:10.1186/1476-069X-6-14

Open Data