Question

A cohort study involving females born between 1960 and 1999 assessed the association between eating disorders and parental education. Data are presented in the following table.

Part 1. Calculate the percent increase change (RR-1x100) of an eating disorder for mothers of secondary education compared with elementary education, and of postsecondary education compared with elementary education.

year Mother's Education Elementary secondant Eciting Disorder Ouit come Yes I NOI persona 25 96,500 47 193,47l6 52 187 441 Scanned DSitsaa secondainy

Answer 1

Percent increase change (RR-1x100) of an eating disorder for mothers of secondary education compared with elementary education = (47/93476) *.100 to (25/96500) *.100 i.e 0.05 to 0.025 .

Percent increase change (RR-1x100) of an eating disorder for mothers of postsecondary education compared with elementary education = (52/87441) *.100 to (25/96500) *.100 i.e. 0.06 to 0.025.

Both of the comparison are actually percentage decrease. As the education level of mother increases the eating disorder has also increased.

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