Brodie KD, David AP, Kriss H, Chan DK Outcomes of an Early Childhood Hearing Screening Program in a Low-Income Setting. JAMA Otolaryngol Head Neck Surg. 2022 Apr 1;148(4):326-332. doi: 10.1001/jamaoto.2021.4430. Erratum In: JAMA Otolaryngol Head Neck Surg. 2022 Nov 1;148(11):1081-1082.
Cedars E, Kriss H, Lazar AA, Chan C, Chan DK Use of otoacoustic emissions to improve outcomes and reduce disparities in a community preschool hearing screening program. PLoS One. 2018 Dec 10;13(12):e0208050. doi: 10.1371/journal.pone.0208050. eCollection 2018.
Foust T, Eiserman W, Shisler L, Geroso A Using otoacoustic emissions to screen young children for hearing loss in primary care settings. Pediatrics. 2013 Jul;132(1):118-23. doi: 10.1542/peds.2012-3868. Epub 2013 Jun 3.
Prieve BA, Schooling T, Venediktov R, Franceschini N An Evidence-Based Systematic Review on the Diagnostic Accuracy of Hearing Screening Instruments for Preschool- and School-Age Children. Am J Audiol. 2015 Jun;24(2):250-67. doi: 10.1044/2015_AJA-14-0065.
Pure-tone Audiometry Versus Otoacoustic Emissions for Preschool Hearing Screening
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.
