Table 2. The OR of having a serum PSA level ≥2.5 or ≥4.0 ng ml⁻¹ according to obesity.

	OR	95% CI	P
PSA threshold 2.5 ng ml−1
Non-obese	Reference
Obese	0.823	0.743–0.912	<0.001a
PSA threshold 4.0 ng ml−1
non-obese	Reference
obese	0.856	0.718–1.020	0.082a

Abbreviations: CI, confidence interval; OR, odds ratio; PSA, prostate-specific antigen.

^aLogistic regression analyses.