These links provide datasets (ASCII plain text, SAS, and Stata files), study descriptions, variable lists, and source information:

Treatment of Lead Exposed Children Trial (N=50) (lead-data.txt) (lead.sas7bdat) (lead.dta)

Treatment of Lead Exposed Children Trial (N=100) (tlc-data.txt) (tlc.sas7bdat) (tlc.dta)

Treatment of Lead Exposed Children Trial with Missing Data (N=100) (tlcmiss-data.txt) (tlcmiss.sas7bdat) (tlcmiss.dta)

Vlagtwedde-Vlaardingen Study (smoking-data.txt) (smoking.sas7bdat) (smoking.dta)

Six Cities Study of Air Pollution and Health (fev1-data.txt) (fev1.sas7bdat) (fev1.dta)

Crossover Study of Pain Relief for Tension Headache (headache-data.txt) (headache.sas7bdat) (headache.dta)

Study of Low Birth Weight Infants (bpd-data.txt) (bpd.sas7bdat) (bpd.dta)

Alachua County Study of Mental Impairment (impairment-data.txt) (impairment.sas7bdat) (impairment.dta)

Clinical Trial of Patients with Insomnia (insomnia-data.txt) (insomnia.sas7bdat) (insomnia.dta)

Television School and Family Smoking Prevention and Cessation Project (tvsfp-data.txt) (tvsfp.sas7bdat) (tvsfp.dta)

Development Toxicity Study of Ethylene Glycol (ntp-data.txt) (ntp.sas7bdat) (ntp.dta)

Malignant Melanoma Mortality and Ultraviolet Light Exposure (melanoma-data.txt) (melanoma.sas7bdat) (melanoma.dta)

Muscatine Coronary Risk Factor Study - Aggregate Data (obesity-data.txt)

Muscatine Coronary Risk Factor Study (muscatine-data.txt) (muscatine.sas7bdat) (muscatine.dta)

Clinical Trial of an Anti-Epileptic Drug (epilepsy-data.txt) (epilepsy.sas7bdat) (epilepsy.dta)

Clinical Trial of an Anti-Epileptic Drug: Final Interval Only (seizure-data.txt) (seizure.sas7bdat) (seizure.dta)

Crossover Trial on Cerebrovascular Deficiency (ecg-data.txt) (ecg.sas7bdat) (ecg.dta)

Clinical Trial of Contracepting Women (amenorrhea-data.txt) (amenorrhea.sas7bdat) (amenorrhea.dta)

Clinical Trial of Contracepting Women (contracep-data.txt) (contracep.sas7bdat) (contracep.dta)

Exercise Therapy Trial (exercise-data.txt) (exercise.sas7bdat) (exercise.dta)

Log C-peptide concentration in Children with Diabetes (diabetes-data.txt) (diabetes.sas7bdat) (diabetes.dta)

Study of Dental Growth (dental-data.txt) (dental.sas7bdat) (dental.dta)

U.S. Centers for Disease Control Study of Infant Birth Weight (birthwt-data.txt) (birthwt.sas7bdat) (birthwt.dta)

Study of Risk Factors for Coronary Heart Disease (chd-data.txt) (chd.sas7bdat) (chd.dta)

Clinical Trial of Antibiotics for Leprosy (leprosy-data.txt) (leprosy.sas7bdat) (leprosy.dta)

National Cooperative Gallstone Study (cholesterol-data.txt) (cholesterol.sas7bdat) (cholesterol.dta)

Study of Weight Gain (rat-data.txt) (rat.sas7bdat) (rat.dta)

Clinical Trial of Patients with Respiratory Illness (respir-data.txt) (respir.sas7bdat) (respir.dta)

Study of Bladder Cancer Tumors (tumor-data.txt) (tumor.sas7bdat) (tumor.dta)

AIDS Clinical Trial Group (ACTG) Study 193A (cd4-data.txt) (cd4.sas7bdat) (cd4.dta)

Onychomycosis Study (toenail-data.txt) (toenail.sas7bdat) (toenail.dta)

Study of Progesterone Metabolite Concentration (progesterone-data.txt) (progesterone.sas7bdat) (progesterone.dta)

Arthritis Clinical Trial (arthritis-data.txt) (arthritis.sas7bdat) (arthritis.dta)

U.S. National Institute of Mental Health (NIMH) Schizophrenia Collaborative Study (schizophrenia-data.txt) (schizophrenia.sas7bdat) (schizophrenia.dta)

Skin Cancer Prevention Study (skin-data.txt) (skin.sas7bdat) (skin.dta)

MIT Growth and Development Study (fat-data.txt) (fat.sas7bdat) (fat.dta)

Connecticut Child Surveys (ccs-data.txt) (ccs.sas7bdat) (ccs.dta)