Table 3 Simple logistic regression models of association between pre and post-conceptional exposure to PM2.5 and risk of cryptorchidism among male children.

From: Associations between maternal periconceptional exposure to PM2.5 and the risk of cryptorchidism: a case-control study of 4274

 

PM2.5(10 μg/m3)

Crude OR (95% CI)

P

Pre-conception,

 0–1 month

1.02(0.99,1.04)

0.06

 1–2 month

1.01(0.99,1.03)

0.41

 2–3 month

1.00(0.98,1.02)

0.75

 0–3 month

1.01(0.99,1.04)

0.37

Post-conception,

 0–1 month

1.02(1.00,1.05)

0.03

 1–2 month

1.03(1.00,1.05)

0.02

 2–3 month

1.09(0.99,1.03)

0.47

 0–3 month

1.03(1.00,1.05)

 < 0.05

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