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Table 1 Levels of metalloestrogens in whole blood (μg/L) of cases and controls

From: Elevated levels of whole blood nickel in a group of Sri Lankan women with endometriosis: a case control study

Metalloestrogen Cases (n=50) Controls (n=50) P value†
Nickel 2.6 (1.9-3.3) 0.8 (0.7-0.9) 0.016
Lead 11.0 (8.6-13.3) 6.9 (5.7-8.0) 0.389
Cadmium 0.7 (0.7-0.9) 0.8 (0.6-1.0) 0.423
  1. Data expressed as geometric mean (95% CI).
  2. t-test between blood levels of cases and controls.