The apparent prevalence, the true prevalence
Biochemia medica, 2022 Serologic tests are important for conducting seroepidemiologic and prevalence studies. However, the tests used are typically imperfect and produce false-positive and false-negative results. This is why the seropositive rate (apparent prevalence) does not typically reflect the true prevalence of the disease or condition of interest.
Farrokh Habibzadeh +2 more
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Public Health Reports (1896-1970), 1966 A MBLYOPIA is a catchall term used for unexplained reduction of visual acuity. "Unexplained" means that, in spite of any refractive error being neutralized with lenses and in the absence of detectable eye disea,se, the acuity of the eye is still below normal.
Merton C. Flom, Richard W. Neumaier
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Prevalence of Postpartum Family Planning Service Coverage in Selected Referral Facilities of Nepal [PDF]
, 2020 Introduction: Nepal Society of Obstetricians and Gynecologists jointly with the Nepalese government and with the support from the International Federation of Obstetrics and Gynecology has implemented an initiative to institutionalize postpartum family ...
Acharya, S +15 more
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Autism prevalence in China is comparable to Western prevalence [PDF]
Molecular Autism, 2019 BACKGROUND: Autism prevalence in the West is approximately 1% of school age children. Autism prevalence in China has been reported to be lower than in the West. This is likely due to at least two reasons: (1) most studies in China only included the special school population, overlooking the mainstream school population; and (2) most studies in China ...
Sian M. Griffiths +11 more
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Prevalence, causes, and risk factors for functional low vision in Nigeria: results from the national survey of blindness and visual impairment. [PDF]
, 2011 PURPOSE: To estimate prevalence and describe causes of functional low vision (FLV) among a nationally representative sample of Nigerian adults, assess socioeconomic risk factors, and estimate the number of adults in Nigeria who might benefit from low ...
Entekume, Gabriel +7 more
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Smoke and thriving: An ecological study [PDF]
, 2015 Studies suggest a possible inverse correlation between smoking attitude and happiness levels. The present paper investigates the relation between males and females smoking prevalence and happiness levels in 155 countries worldwide.
Grassi, Maria Caterina +2 more
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Prevalence study of yaws in the Democratic Republic of Congo using the lot quality assurance sampling method. [PDF]
, 2009 BACKGROUND: Until the 1970s the prevalence of non-venereal trepanomatosis, including yaws, was greatly reduced after worldwide mass treatment. In 2005, cases were again reported in the Democratic Republic of the Congo. We carried out a survey to estimate
Dhorda, M +9 more
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Millennium development goal 6 and HIV infection in Zambia : what can we learn from successive household surveys? [PDF]
, 2011 Background: Geographic location represents an ecological measure of HIV status and is a strong predictor of HIV prevalence. Given the complex nature of location effects, there is limited understanding of their impact on policies to reduce HIV prevalence.
Brodish, Paul +4 more
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Prevalence of Helicobacter pylori in patients with gastro-oesophageal reflux disease : systematic review. [PDF]
, 2003 Objectives: To ascertain the prevalence of Helicobacter pylori in patients with gastro-oesophageal reflux disease and its association with the disease.
Childs, S. +3 more
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