birth {sm}R Documentation

Low birthweight in babies

Description

The data refer to a study on low birthweight in babies, defined as "less than 2500 grams", and related factors.

The variables are:

Smoke indicator of whether the mother is a smoker
Lwt last menstrual weight of the mother
Low indicator variable of low weight

Hosmer & Lemeshow (1989). Applied Logistic Regresion. Wiley, NY. The original source contains additional variables; see Appendix 1 of Hosmer & Lemeshow for a full list of the data, pp.29-30 and p.92 for additional information.


[Package sm version 2.2-5.6 Index]