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July 26, 1985

Blood Lead and Blood Pressure-Reply

Author Affiliations

University of Michigan School of Public Health Ann Arbor

JAMA. 1985;254(4):505-506. doi:10.1001/jama.1985.03360040055016

In Reply.—  We regret any confusion readers may have in the transition from the results in Table 1 to those in Tables 2 and 3. Our first analysis focused on unadjusted differences between selected factors for subgroups with normal vs elevated diastolic blood pressures. These results are presented in Table 1 separately for men and women for two broad age groups, 21 to 55 and 56 to 74 years. Few persons aged 12 to 20 years had diastolic blood pressures over 90 mm Hg and, therefore, were not included in the subgroup analyses reported in Table 1. However, data from the entire age range of 12 to 74 years were included in the Figure and the multiple regression models summarized in Table 2 and 3.The Figure summarizes mean, not individual, diastolic blood pressures. There is no justification to assert that "virtually everyone is normotensive." In fact, more than 25%