Table 11.3 HERS data
Description
Dataset used in Chapter 11 of Regression Methods in Biostatistics (2nd edition), as distributed on the UCSF companion website. Study design: Baseline/Visit 1 subset from the longitudinal HERS data structure. Primary article: Hulley and colleagues (1998), JAMA.
Usage
hers_long_base_visit1_only_saved
Format
A data frame with 5526 rows and 22 variables:
- pptid
- Participant identifier.
- nvisit
- Visit number (0=baseline)
- age
- Age or age category at baseline (as coded in source data).
- visit
- Visit number (time point) in longitudinal follow-up.
- exer3
- bl exercise &/or walk >3x/wk, 1:y 0:n
- avgdrpwk
- avg drinks per week
- csmker
- current smoking status 1:current
- weight
- Body weight (kg).
- bmi
- body mass index
- sbp
- average systolic blood pressure
- glucose
- Fasting plasma glucose (mg/dL).
- htnmeds
- anti-htn meds use
- drinkany
- (1 if avgdrpwk>0, 0 otherwise)
- diabetes
- (1=yes, 0=no)
- highsbp
- Indicator for elevated systolic blood pressure.
- sbp_z
- Standardized (z-score) systolic blood pressure.
- group
- treatment assignment 0:a: pbo, 1:b:hrt
- grade_hi
- highest grade completed
- white
- (1=white, 0=other)
- baseline_dm
- Indicator for diabetes at baseline.
- miss_mar
- Indicator for values set missing under MAR mechanism.
- miss_nmar
- Indicator for values set missing under NMAR mechanism.