Smokingbwt
Sample of (N=1513) pregnant women delivering at one hospital
- Reference:
- Unpublished data
- Description:
- Study the impact of smoking on birthweight.
- Data dictionary:
-
Each row contains the following 20 variables for each person. R datasets have an X before the _ for the alcohol group variables. SPSS has V1-V5 for the the alcohol group variables but the labels are descriptive. Stata abbreviates socialclass as socialclas~5.
Name Interpretation Data type Permitted Values nausea1 Nausea at booking interview Numeric birthwt Birthweight (g) Numeric cigsday1 Cigarettes per day Numeric smoker1 Numeric smokegroup Numeric 1 = "never smoked"; 2 = "Ex pre-pregnancy"; 3 = "Ex in pregnancy"; 4 = "1-14 cigs/day"; 5 = "15+ cigs/day" nic1 Nicotine Numeric tar1 Tar content Numeric co1 Carbon monoxide Numeric socialclass Mother's social class Numeric adjbw Baby weight adjusted for gestational age, height, sex and parity Numeric alcohol1 Grams of alcohol consumed last week Numeric moclass mo Numeric alcgroup Alcohol group membership Numeric cigsgp <13 cigs/day & <15mg co vs rest Numeric _Icigsgp_2 Cigarette group equals 2 Numeric _Ialcgroup_1 Alcohol group equals 1 Numeric _Ialcgroup_2 Alcohol group equals 2 Numeric _Ialcgroup_3 Alcohol group equals 3 Numeric _Ialcgroup_4 Alcohol group equals 4 Numeric alcgroup1 Alcohol group membership (Alcohol group variable repeated for legacy code) Numeric 0, 1, 2, 3, 4