Table 2

Outcome variables (median and 5–95% range) among 189 Swedish fishermen depending on exposure to methyl mercury (MeHg).



MeHg (μg/L)

K-W
 J-T
 <1.08 (n = 37)
 1.08–1.86 (n = 36)
 1.86–2.79 (n = 37)
 2.79–4.40 (n = 36)
 >4.40 (n = 36)
Exposure






MeHg (μg/L)

0.71 (0.28–1.05)
 1.59 (1.12–1.85)
 2.25 (1.89–2.78)
 3.43 (2.85–4.33)
 5.92 (4.63–15.54)
CB-153 (ng/g lipid)

125 (48–142)
 200 (41–131)
 191 (55–353)
 230 (76–804)
 317 (108–982)
Outcomes






A+B motile (%)
 0.90
 0.70
 62 (17–90)
 63 (21–86)
 54 (15–83)
 64 (14–87)
 60 (12–84)
Sperm concentration (10^6/ml)
 0.94
 0.73
 42 (6–119)
 54 (4–200)
 48 (9–176)
 53 (17–207)
 48 (16–110)
Total sperm count (× 10^6)
 0.98
 0.73
 135 (14–590)
 170 (13–477)
 127 (15–732)
 159 (26–386)
 134 (45–342)
Semen volume (ml)
 0.58
 0.87
 3.5 (0.9–5.9)
 3.0 (0.8–5.5)
 3.4 (1.2–6.2)
 3.1 (0.7–5.8)
 3.3 (1.2–7.7)
DFI (%)
 0.26
 0.05
 14 (6–32)
 13 (4–36)
 17 (6–45)
 17 (6–38)
 20 (6–44)
HDS (%)
 0.71
 0.38
 10 (3–22)
 8 (4–29)
 8 (4–30)
 7 (4–26)
 9 (3–18)
Y-chromosome bearing sperms (%)
 0.19
 0.04
 51.0 (48.7–54.6)
 51.1 (47.5–55.2)
 50.1 (49.3–54.0)
 51.1 (48.8–54.0)
 51.8 (48.5–56.4)

Differences between exposure groups are analysed using the Kruskal-Wallis (K-W) test, whereas trends are tried using the Jonckheere-Terpstra (J-T) test.

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

Open Data