Data: Total Births: 2,700 Low Birth Weight: 264 Mothers with inter-gestational interval

Data:
Total Births: 2,700 Low Birth Weight: 264
Mothers with inter-gestational interval < 12="" months:="">
Mothers with low birth weight with inter-gestational interval < 12="" months:="">
Mothers with previous HTN: 18
Mothers with low birth weight with previous HT: 15

A) Global or absolute risk of low birth weight.
B) Relative risk for the factor "inter-gestational interval < 12="" months".="" according="" to="" the="" results="" obtained,="" give="" your="" opinion="" as="" to="" whether="" there="" is="" an="" association="" or="" not="" and="" express="" it="">
C) Relative risk for the factor "mothers with previous HTN". According to the results obtained, give your opinion as to whether or not there is an association and express it accordingly.
D) In the case of the factors in which you consider, according to the results obtained, that there is an association, calculate the Attributable Risk (AR) and the Etiological Risk Fraction (ERF), expressing in both cases their significance.