| Regression coefficients (95% confidence interval) | p value |
---|---|---|
Right testicle | ||
 PM2.5 | −0.472 (− 0.956 to 0.607) | 0.643 |
 SO2 | −3.101 (−8.279 to −1.575) | 0.006** |
 NOx | −0.967 (− 0.376 to 0.140) | 0.347 |
 O3 | −1.337 (− 1.007 to 0.226) | 0.199 |
Left testicle | ||
 PM2.5 | 0.472 (−0.956 to 0.607) | 0.643 |
 SO2 | −3.101 (−8.279 to −1.575) | 0.006** |
 NOx | −0.967 (− 0.376 to 0.140) | 0.347 |
 O3 | −1.337 (− 1.007 to 0.226) | 0.199 |