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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Environ Res. 2015 Oct;142:563–567. doi: 10.1016/j.envres.2015.08.006

Table 1. Geometric mean benzophenone-3 (µg/g creatinine) according to frequency of sunscreen use (n=4412).

Frequency of sunscreen use Geometric mean BP-3 concentration (µg/g creatinine) p-value
Never 9.3 ref
Rarely 14.8 <0.01
Sometimes 32.3 <0.01
Most of the time 74.2 <0.01
Always 116.8 <0.01