Trends in surgery and radiation for patients with T1-T3N1M0 squamous cell or adenocarcinoma of the mid or distal esophagus in the Surveillance, Epidemiology, and End Results database from 1998 to 2008 were analyzed using generalized linear models including year as predictor; Surveillance, Epidemiology, and End Results doesn't record chemotherapy data.
Moreover, models including year of follow-up and sex (both categorical variables) were fitted for subgroups by age to test for gender differences.
Other covariates included in the multivariable Cox models included years of age (at surgery), tumor size (cm), histologic grade of tumor.
Significant predictors of bone lead in multivariate models included years living in Mexico City, lower consumption of high calcium content foods, and nonuse of calcium supplements for the patella and years living in Mexico City, older age, and lower calcium intake for tibia bone.
All models include year and industry dummy variables.
(constant) 4196 4307 4312 3875 All models include year fixed effects and entropy balancing weights.
All models include year and state fixed effects as well as educational attainment indicators, a binary variable indicating whether the woman works or not and a unmarried dummy variable.
Among adult coyotes, the best-supported models included year and resident effects.
Linear multilevel regression models included year of birth, household wealth, education, and area of residence, and accounted for clustering by primary sampling units and countries.
These statistical models included year as a random effect and the following fixed effects: linear through fourth order polynomial functions of month (to account for nonlinear fluctuations in temperature and rainfall), management regime (before or after contraception management), and two-way interactions with management regime.
