Longitudinal data analysis is an essential statistical approach for studying phenomena observed repeatedly over time, allowing researchers to explore both within-subject and between-subject variations ...

Suggested Citation: "Appendix B: SMP Section Summaries." National Academies of Sciences, Engineering, and Medicine. 2024. LTPP Data Analysis: Improving Use of FWD and Longitudinal Profile Measurements ...

A geriatric oncology example shows how different analytic choices for longitudinal patient-reported outcomes can shift ...

Clinical impact of oncogenic KRASdosage variation in pancreatic cancer. A phase II study of radiotherapy combined with docetaxel, cisplatin, and 5-fluorouracil for postoperative loco-regional ...

New research quantified the association between loneliness and dementia by analyzing data from more than 600,000 people around the world. The meta-analysis of 21 longitudinal studies showed that ...

A large-scale longitudinal study published in the Canadian Medical Association Journal (CMAJ) has found that high adherence ...

The IMF’s World Revenue Longitudinal Database (WoRLD) tracks government revenue trends in 193 countries since the early 1990s. This invaluable resource offers policymakers, researchers, and the public ...

Variation in environmental factors can result in changes in pavement material properties. In asphalt pavements, asphalt stiffness is affected by changes in temperature (e.g., moduli value increases ...