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1.
Am J Prev Med ; 42(6): 602-5, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22608376

ABSTRACT

BACKGROUND: An increase in total vaccine exemptions (medical, philosophic, and religious) occurred in Arkansas after a 2003 legislation added a philosophic category and used a new process for vaccine exemptions. By legislative requirement, the Arkansas Department of Health monitored exemptions through the 2009-2010 school year. PURPOSE: The goal of the study was to determine the prevalence of vaccine exemption in 2003-2010 compared to the number of requests prior to the legislation enacted in 2003. METHODS: Exemptions were calculated by school-age category using raw numbers of exemptions, total estimates of the population by age level, enrollment numbers for students in public and private schools, and in enrolled college students born after 1957. Exemptions also were analyzed by school district, grade level, type of exemption, and particular vaccine exemption requested. RESULTS: Overall exemptions continued to rise each year, with an average increase of 23.1% annually. Medical exemptions declined from an average of 21.3% of all exemptions before to an average of 4.8% thereafter. The greatest increase in number of exemptions was observed among college students. The highest total rate of exemptions per precollegiate student population was <1.3%. When exemption requests were categorized, most (79%) were for exemptions from "all vaccines." The most common single exempted vaccine was MMR (measles, mumps, rubella). CONCLUSIONS: Since philosophic exemptions were codified in 2003 in Arkansas, the number and rate of vaccine exemptions continue to progressively increase. However, vaccine-preventable disease clusters have not yet been linked to or identified in any population with a high rate of vaccine exemptions.


Subject(s)
Health Policy/legislation & jurisprudence , Immunization Programs/legislation & jurisprudence , Immunization Programs/statistics & numerical data , Arkansas , Child, Preschool , Humans , Infant , Mandatory Programs/legislation & jurisprudence , Registries
2.
Appl Occup Environ Hyg ; 18(11): 930-8, 2003 Nov.
Article in English | MEDLINE | ID: mdl-14555446

ABSTRACT

This study was undertaken to determine the impact of exposure to metal removal fluids (MRFs) on the respiratory health of exposed workers. The outcome measure selected was the rate of hospital admissions for nonmalignant respiratory disease episodes as determined from healthcare insurance claims data. A cohort of MRF-exposed employees was assembled from 11 manufacturing facilities where MRFs were extensively used in the manufacture of automotive engines, transmissions, and other machined parts. The MRF-exposed cohort included 20,434 employees of such facilities who worked at any time from 1993 through 1997. A non-MRF-exposed cohort was assembled from other employees of the same company during the same time period, but working in warehouse operations and other manufacturing facilities that did not use MRFs or any known respiratory sensitizing agents. The non-exposed cohort included 8681 employees. The crude hospital admission rate for the MRF-exposed cohort was 44 percent higher than that of the non-exposed cohort over the 5-year study period (6.67 vs. 4.62 per 1000 person years at risk, p < 0.05). With age adjustment, the MRF population's rate was still 35 percent higher, and still statistically significant. A nested case-control study was also conducted to determine whether the risk of hospital admission increased with the level of MRF exposure in the population working in MRF plants. The industrial hygiene reconstruction found the levels of exposures of both cases and controls to be very low, with the vast majority of study subjects (more than 90%) having exposures of less than 0.5 mg/m(3). The case-control study did not find any association between increased levels of MRF exposure and risk of hospitalization. The study did document an elevated risk of hospitalization among a sizable population employed in manufacturing operations where MRFs are used.


Subject(s)
Automobiles , Metallurgy/instrumentation , Occupational Diseases/epidemiology , Occupational Exposure/statistics & numerical data , Patient Admission/statistics & numerical data , Respiratory Tract Diseases/epidemiology , Case-Control Studies , Cohort Studies , Humans , Incidence , Insurance, Health/statistics & numerical data , Morbidity , Odds Ratio , United States/epidemiology
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