Nurses’ Health Study (NHS I) and Nurses’ Health Study II (NHS II)
Country: United States
Study Design: Observational cohort with repeated measurements over time
Participant age range: Early adulthood or midlife at enrollment
Number of participants at baseline: 121,700 (NHS I); 116,430 (NHS II)
Year of initial enrollment: 1976 (NHS I); 1989 (NHS II)
Number of data collection waves: 23 (NHS I) and 17 (NHS II); data collection ongoing
Measures of well-being:
Purpose / Meaning in Life / Ikigai
Quantity of well-being measures (e.g., number of constructs, number of times of well-being was assessed: Moderate
Quality of well-being measures (e.g., were measures reliable and valid in the study population): High
Measures of physical health:
Self-rated / questionnaire-based health
Self-report medical history or medication use
Measured anthropometrics, e.g., weight
Linked medical records
Adjudicated health outcomes
This dataset is available to all researchers.
Researchers are required to submit an application to access this data. Fees are required to access this dataset.
Notable Citation: Kim E, Hagan K, Grodstein F, DeMeo D, De Vivo I, & Kubzansky L. (2017). Optimism and cause-specific mortality: a prospective cohort study. American journal of epidemiology, 185(1), 21-29.