Chi-rectangular research was utilized to test getting differences in brand new prevalence anywhere between genders, age groups, and other subgroups
Chi-rectangular research was utilized to test getting differences in brand new prevalence anywhere between genders, age groups, and other subgroups S.: n=thirteen,689) separated by the shot size of for each country increased by brand new weights According to the complex sampling design of the GYTS, the weighted prevalence estimates and their 95% confidence intervals (CI) of smokeless tobacco use in each country were calculated using original sampling weights, strata, and pripling units provided in the datasets using the SAS PROC SURVEYFREQ procedure. The original weights were calculated by the following formula: W=W1*W2*f1*f2*f3*f4, where W1 is the inverse of the selection probability of each school; W2 is the inverse of selection probability of each class; f1 is the school-level non-response adjustment factor calculated by school enrolment size; f2 is the class-level…
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