19 resultados para Instrument variable regression


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Please consult the paper edition of this thesis to read. It is available on the 5th Floor of the Library at Call Number: Z 9999 E38 D56 1992

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The study aim was to investigate the relationship between factors related to personal cancer history and lung cancer risk as well as assess their predictive utility. Characteristics of interest included the number, anatomical site(s), and age of onset of previous cancer(s). Data from the Prostate, Lung, Colorectal and Ovarian Screening (PLCO) Cancer Screening Trial (N = 154,901) and National Lung Screening Trial (N = 53,452) were analysed. Logistic regression models were used to assess the relationships between each variable of interest and 6-year lung cancer risk. Predictive utility was assessed through changes in area-under-the-curve (AUC) after substitution into the PLCOall2014 lung cancer risk prediction model. Previous lung, uterine and oral cancers were strongly and significantly associated with elevated 6-year lung cancer risk after controlling for confounders. None of these refined measures of personal cancer history offered more predictive utility than the simple (yes/no) measure already included in the PLCOall2014 model.

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Public Instrument of Protest (1 double-sided handwritten page) by William W. Gillvery and the North West Company against Angus W. Gillis for breaking his agreement with the company, March 26, 1800.

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Instrument of protest from Edward Barrori Palmer, Notary Public of Oakville regarding a protest by Samuel Sutherland, Master of the schooner Elizabeth and Charles McEacherin, mate. The schooner belonged to the Port of Niagara. It set sail from Port Credit to the Port of Niagara. On the 15th day of May there was a violent storm. On the 16th day of May, part of the deck and cargo consisting of lumber went overboard. The mainsail was lost and the jib was split due to the wind. All losses and damages should be borne by the merchants and whomever else it concerned and not by or through the insufficiency of the schooner of neglect by the officers and mariners. This is a 2 ½ page handwritten document, May 16, 1837.