Health Behavior — Primary Care Provider Supply and Patient Outcomes
Citation(s)
Okeke EN, Abubakar IS Healthcare at the Beginning of Life and Child Survival: Evidence from a Cash Transfer Experiment in Nigeria. J Dev Econ. 2020 Mar;143. pii: 102426. doi: 10.1016/j.jdeveco.2019.102426. Epub 2019 Nov 22.
Okeke EN, Wagner Z, Abubakar IS Maternal Cash Transfers Led To Increases In Facility Deliveries And Improved Quality Of Delivery Care In Nigeria. Health Aff (Millwood). 2020 Jun;39(6):1051-1059. doi: 10.1377/hlthaff.2019.00893.
Okeke EN Money and my mind: Maternal cash transfers and mental health. Health Econ. 2021 Nov;30(11):2879-2904. doi: 10.1002/hec.4398. Epub 2021 Aug 30.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.