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. Author manuscript; available in PMC: 2014 Feb 17.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2013 Jan 16;23(4):356–362. doi: 10.1038/jes.2012.113

Figure 4.

Figure 4

Relationship between peak urinary TCPy levels and blood AChE (A&B) and BChE (C&D) for each subject during the beginning of the CPF application period on Day 73 (A&C) and after CPF application on Day 146 (B&D). Applicators are represented by squares and non-applicators by circles. Reported BChE activity of “0” (below the limit of detection) is shown by a + sign. A piecewise-linear model, constrained to be constant (horizontal) prior to the transition point, was fitted to data combined from applicators and non-applicators; the shaded region represents the 95% confidence interval for the mean response at any given peak TCPy concentration.