Table 5.
Semen quality | Percentile of exposure | 1N | TCPY | ||||
---|---|---|---|---|---|---|---|
Coef | 95% CI | p | Coef | 95% CI | p | ||
Conc | <50th | Ref | Ref | ||||
⩾50th | 0.08 | [−0.17, 0.33] | .53 | −0.23 | [−0.47, 0.003] | .053 | |
Motility | <50th | Ref | Ref | ||||
⩾50th | 4.26 | [−0.56, 9.08] | .08 | −5.14 | [−9.62, 0.67] | .024 | |
Morph | <50th | Ref | Ref | ||||
⩾50th | −7.25 | [−13.01, −1.49] | .01 | 0.35 | [−5.08, 5.78] | .9 | |
VSL | <50th | Ref | Ref | ||||
⩾50th | 3.47 | [0.99, 5.95] | .006 | 0.25 | [−2.1, 2.6] | .84 | |
VCL | <50th | Ref | Ref | ||||
⩾50th | 1.63 | [−0.48, 3.74] | .13 | −0.45 | [−2.43, 1.53] | .65 | |
LIN | <50th | Ref | Ref | ||||
⩾50th | 0.85 | [−0.7, 2.4] | .28 | 0.25 | [−1.21, 1.7] | .74 | |
DFI | <50th | Ref | Ref | ||||
⩾50th | 0 | [−0.21, 0.21] | .1 | 0.009 | [−0.12, 0.29] | .4 | |
HDS | <50th | Ref | Ref | ||||
⩾50th | −1.22 | [−2.57, 0.14] | .08 | −0.23 | [−1.56, 1.11] | .74 |
Statistically significant at the level .05. Multivariate model adjusted for sexual abstinence, age, smoking, alcohol consumption, past diseases, and creatinine. 1N = 1-naphthol; Coef = ß coefficient; Conc = sperm concentration; DFI = DNA fragmentation index; HDS = high DNA stainability; LIN = linearity; Morph = percentage of sperm with normal morphology; Ref = reference; TCPY = 3,5,6-trichloro-2-pyridinol; VCL = curvilinear velocity; VSL = straight-line velocity.