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We examined this possibility by including an indicator for migration to the capital, in addition to the other three experience measures, to the specifications shown in the final columns of Table 3, treating migration to the city as endogenous.
Missing radiotherapy dose was handled by including an indicator variable in all analyses.
The third definition builds on the second by including an indicator of the couple's desire to become pregnant.
Cases with skin lesions were included after adjusting for possible distortion of associations between the nutritional factors and arsenic methylation patterns by including an indicator variable for skin lesions in the analyses.
Prior studies, such as in Azoulay et al. (21), have adjusted for statin use by including an indicator variable to capture any previous use or no use in their model because statin use has itself been associated with PCa risk.
The multivariate models for out-of-pocket expenditures controlled for differences in illness or health condition composition by including an indicator variable for each of the seven conditions covered by the scheme.
Similar(51)
The multinomial logistic regression framework described above is extremely flexible and can be easily extended to allow for non-multiplicative disease risks, for example, by including an additional indicator I G i = 1) of dominance in equation (1).
Unlike the individual case, we cannot control for group by stratifying or including an indicator variable in the regression: the ecologic data provide insufficient information for using these techniques (e.g., with only two ecologic data points, we cannot add a covariate to the ecologic regression).
We used conditional logistic regression models to calculate odds ratios (OR) and 95% confidence intervals (CI) for mortality and hospital admission on extreme heat days (lag0, lag1, lag2, lag3, lag 0 2 days) compared to other days, adjusted for potential confounders and stratified by zone (ie: including an indicator for zone).
Further analyses were conducted using DCCT/EDIC M1 including adjustment for PCs, and testing for deviation from an additive genetic model by including a heterozygous indicator to a model with rs1495741 coded additively.
We addressed the differences (and changes) in access in rural versus urban areas by including an interaction terms of urban/rural indicator and opt-out indicator in the multiple regression models.
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