Variously lagged variables were introduced to regressions sequentially, all models controlling for trend, improving diagnostics, background seasonality, bank holidays and weekends.
The final regression model thus included terms for relative humidity in the last 35 days, temperature in the last 49 days, population immunity and epidemic seasons controlling for trend, improving diagnostics, background seasonality, bank holidays and weekends.
After controlling for trend, improving diagnostics, background seasonality, bank holidays and weekends, it was found that lower temperature, lower relative humidity, lower population immunity and the emergence of new norovirus variants were independently associated with an increase in norovirus reports (Figure 3, Figure 4).
We applied a multivariable time-series model with all-cause mortality as outcome, activity of influenza-like illness (ILI) and excess temperatures as explanatory variables, controlling for trend, season, age, and gender.
Controlling for trend, seasonality, the 2009 pandemic influenza year and bronchiolitis, when the incidence rate of ED presentations for ILI in persons of all ages increased by 1/100,000 population in a week, the incidence rate of ED presentations for convulsions in children under 6 years increased by approximately 6.7/100,000 population one week earlier.
Controlling for trend, seasonality, the 2009 pandemic influenza year and ILI, when the incidence rate of ED presentations for bronchiolitis in children under three years increased by 1/100,000 population, the incidence rate of ED presentations for convulsions in children under 6 years increased by 0.01/100,000 one week earlier.
Citations to the key OncoMouse papers, a measure of innovation, jumped by 21 percent after controlling for trends in OncoMouse research and research involving other mice strains.I had a chance to hear Mr Tabarrok discuss his book on Monday evening.
Immediate effects of temperature on EDV and EAD were detected, after controlling for trends of time and day of week.
Our specifications further include an interaction between Strategic Health Authorities (SHAs) and time trends, controlling for trends associated with local SHA policies and changes in regional funding.
The matching on calendar time permits controlling for trends over time in the use of AEDs and changes in incidence of the outcome, whereas matching on indication of AED is essential to control for the baseline vascular risk that is likely to differ between indications.
The EB study controls for trend, traffic volume and regression to the mean, while the before and after study only controls for trend and traffic volumes.
