Children — Polish Infants and Toddler Nutritional Study
Citation(s)
Ahluwalia N, Herrick KA, Rossen LM, Rhodes D, Kit B, Moshfegh A, Dodd KW Usual nutrient intakes of US infants and toddlers generally meet or exceed Dietary Reference Intakes: findings from NHANES 2009-2012. Am J Clin Nutr. 2016 Oct;104(4):1167-1174. doi: 10.3945/ajcn.116.137752. Epub 2016 Sep 14.
Csolle I, Felso R, Szabo E, Metzendorf MI, Schwingshackl L, Ferenci T, Lohner S Health outcomes associated with micronutrient-fortified complementary foods in infants and young children aged 6-23 months: a systematic review and meta-analysis. Lancet Child Adolesc Health. 2022 Aug;6(8):533-544. doi: 10.1016/S2352-4642(22)00147-X. Epub 2022 Jun 24. Erratum In: Lancet Child Adolesc Health. 2022 Dec;6(12):e28.
Hamner HC, Perrine CG, Scanlon KS Usual Intake of Key Minerals among Children in the Second Year of Life, NHANES 2003-2012. Nutrients. 2016 Jul 30;8(8):468. doi: 10.3390/nu8080468.
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.
