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For complete survey methodology, including weighting variables, contacts John Yeager.
For complete survey methodology, including weighting variables, please contact [email protected].
The publicly-available data include weighting variables to allow national estimates of ED-level or patient-level characteristics.
Weighting variables will include those used for sampling (ATR values, treatment combinations and geographic region).
Stratification and weighting variables related to the BRFSS sampling and weighting strategy were included in the analyses as design variables.
All weighting variables where calibrated on official demographics and interlocked (=weighting matrix of 2 × 9 × 3 = 54 cells).
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Each sample is accompanied by its (sampling) weighting variable.
Sampling weights were also taken into account in the analyses (weighting variable supplied with the data).
Rather, publicly available data usually include a single overall level-1 weighting variable that incorporates level-2 design issues.
Nevertheless, all niche modelling techniques used here can weight variables differently accordingly to how the species presences are affected by them.
NB: data from SHARE wave 2; results are weighted (Ireland excluded as SHARE does not provide a weighting variable); #standard deviations are not reported for binary variables.
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