TY - JOUR AU - Brownson, Ross C. AB - 246 LETTERS TO THE EDITOR AN AUTHOR REPLIES REFERENCE To quantify one's speculation about information bias in alternative study bases is a difficult but nec- 1. White E. Re: "Exposure opportunity in epidemiologic essary job. It can help to identify people who may have studies." (Utter.) Am J Epidemiol 1988:128.245. been exposed but who cannot be classified as such. In this group of people, the specificity of exposure clas- sification equals one and the sensitivity equals zero. As Dr. White (1) notes, there can be no simple rule Charles Poole about including this group or excluding it from the Epidemiology Resources Inc. study base. Chestnut Hill, MA 02167 RE: "A MEASUREMENT OF THE EFFICACY OF NOSOCOMIAL INFECTION CONTROL USING THE 95 PER CENT CONFIDENCE INTERVAL FOR INFECTION RATES" Morrison et al. (1) have suggested a mechanism for development of the 95 per cent confidence interval rate comparison to be used in the young discipline of around a cumulative rate, given that the numerator of hospital epidemiology. The concept of measuring a the rate is not a subset of the denominator. single rate against one's prior cumulative experience (the baseline period) is useful. The use of the binomial REFERENCE distribution TI - RE: “RISK FACTORS FOR ADENOCARCINOMA OF THE LUNG” JO - American Journal of Epidemiology DO - 10.1093/oxfordjournals.aje.a114954 DA - 1988-07-01 UR - https://www.deepdyve.com/lp/oxford-university-press/re-risk-factors-for-adenocarcinoma-of-the-lung-ROMnbsc5wf SP - 246 EP - 246 VL - 128 IS - 1 DP - DeepDyve ER -