| |
|
Sperm density (x 106/mL) Kruskal-Wallis P < .001
|
Sperm motility (%) ANOVA P = .154
|
Motile density (x 106 per ejaculate) Kruskal-Wallis
P < .001
|
| Year |
n |
Median |
IQR |
Mean |
SD |
Median |
IQR |
|
| 1994 |
301 |
75.0 |
49.0, 118.0 |
51.5 |
16.7 |
118.8 |
62.9, 215.6 |
| 1995 |
323 |
61.4 |
38.7, 98.5 |
48.5 |
18.4 |
97.0 |
43.7, 209.8 |
| 1996 |
357 |
76.0 |
42.4, 115.0 |
47.5 |
18.3 |
110.1 |
50.6, 193.8 |
| 1997 |
354 |
66.5 |
41.8, 95.6 |
48.6 |
19.2 |
112.6 |
47.6, 190.8 |
| 1998 |
351 |
56.0 |
36.4, 85.5 |
50.0 |
19.2 |
102.6 |
50.8, 170.6 |
| 1999 |
375 |
71.0 |
45.7, 107.3 |
47.5 |
19.4 |
119.7 |
53.0, 241.1 |
| 2000 |
379 |
61.1 |
38.3, 92.4 |
49.0 |
20.6 |
96.1 |
44.4, 194.2 |
| 2001 |
350 |
53.0 |
36.4, 78.2 |
50.0 |
19.2 |
90.8 |
42.3, 170.1 |
| 2002 |
387 |
56.4 |
40.2, 80.0 |
50.4 |
17.5 |
91.2 |
47.7, 155.6 |
| 2003 |
635 |
57.9 |
38.0, 81.6 |
49.6 |
18.6 |
92.4 |
45.8, 166.5 |
| 2004 |
536 |
57.7 |
39.3, 79.2 |
49.0 |
17.8 |
89.6 |
45.6, 159.3 |
| 2005 |
484 |
55.9 |
38.9, 80.8 |
48.4 |
18.1 |
87.9 |
39.0, 153.7 |
|
| * Abbreviations used: IQR, interquartile range; SD, standard deviation. |
|
