Correction.Karmaus et al. detected errors in their article "Backward Estimation estimation In mathematics, use of a function or formula to derive a solution or make a prediction. Unlike approximation, it has precise connotations. In statistics, for example, it connotes the careful selection and testing of a function called an estimator. of Exposure to Organochlorines organochlorines see chlorinated hydrocarbons. organochlorines poisoning cause excitement and irritability, tremor, ataxia, weakness, paralysis, convulsions. using Repeated measurements" [Environ en·vi·ron tr.v. en·vi·roned, en·vi·ron·ing, en·vi·rons To encircle; surround. See Synonyms at surround. [Middle English envirounen, from Old French environner Health Perspect 112:710-716 (2004)]. In Table 1, values in the equations for the proposed regression model were incorrect. The correct equations for Table 1 are follows: For estimation of 1970s values from 1980s values, PCB PCB: see polychlorinated biphenyl. PCB in full polychlorinated biphenyl Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound. _[70.sub.(estimate)] = PCB_80 x ([phi]_80 x -0.163) + ([omega] x 0.106) For estimation of 1980s values from 1990s values PCB_[80.sub.(estimate)] = [10.sup.[-0.193 + (log 10 PCB_90 x 0.781) + ([phi]_90 x 0.049) + ([eta]_90 x -0.145)]] Also, in Figure 3, there should not be a measurement for the year 2010. The authors appologize for the errors. |
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