[PDF] Top 20 Los fundamentos de la Libertad - Friedrich August von Hayek
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Using interviewer random effects to remove selection bias from HIV prevalence estimates
... a selection variable that is correlated with con- sent to test but is assumed to be unrelated to HIV status ...ternative selection variable when survey design allows for follow-up attempts to contact ... See full document
196
Adjusting HIV prevalence estimates for non participation: an application to demographic surveillance
... some HIV surveys than those in the Africa Centre in 2009 [38,41,43], when all forms of missing data are incorporated into an overall response rate for those who participated in testing, most HIV surveys in ... See full document
28
Adjusting HIV prevalence estimates for non-participation: an application to demographic surveillance
... We implemented Heckman-type selection models, which can be used to adjust for missing data that are not missing at random, and established the extent of selection bias in a population-ba[r] ... See full document
127
On the Assumption of Bivariate Normality in Selection Models A Copula Approach Applied to Estimating HIV Prevalence
... resulting estimates (Hernan et ...for selection bias to affect ...of HIV research, due to the extent of attrition and missing information, and concerns surrounding the fact that individuals ... See full document
6
Stream recession curves and storage variability in small watersheds
... we chose to use the piecewise linear fit rather than the cubic spline because the former gives straightforward estimates of the local uncertainty of the fit and because it has more pre- dictable behavior at the ... See full document
21
Identification of Causal Effects in the Presence of Selection Bias
... founding bias (Bareinboim and Pearl ...identifiability from ob- servational and experimental data (Tian and Pearl 2002a; Huang and Valtorta 2006; Shpitser and Pearl 2006; Barein- boim and Pearl ... See full document
5
Drinking extra water or other non-caloric beverages for promoting weight loss or preventing weight gain
... adverse effects on mor- bidity and ...side effects, such as liver, kidney and even heart problems can oc- cur (Johansson ...adverse effects may occur and operated people remain at risk for adverse ... See full document
128
Using micro analysis in interviewer training: 'continuers' and interviewer positioning
... While it might be thought that the casual dismissal of minimal responses by those involved in interview training is at least understandable if not excusable, analysts of interaction would take a different view. Research ... See full document
66
A note on obtaining correct marginal predictions from a random intercepts model for binary outcomes
... analysed using random intercepts models or generalised estimating equations (GEE) resulting in cluster-specific or ‘ population-average ’ inference, ...a random effects model is fitted to ... See full document
5
Prevalence of chronic kidney disease in patients with chronic obstructive pulmonary disease: a systematic review and meta-analysis
... extracted from the included studies by two reviewers (SG and SGK) using a standardized and pilot-tested form for data ...derived from the regression models that ad- justed for the maximum number of ... See full document
119
Prevalence of hallux valgus in the general population: a systematic review and meta-analysis
... a prevalence proportion, calculated as the ratio of the number of individuals with HV to the sample size of that study or ...pooled prevalence estimates using a random effects ... See full document
21
Gastroesophageal reflux symptoms among Italian university students: epidemiology and dietary correlates using automatically recorded transactions
... set of students with GERD the percentage of smokers was higher. However, current evidence of associations of GERD with sex or smoking habits are conflict- ing and inconclusive. On the other hand, evidence shows ... See full document
7
Uncontrolled diabetes and health care utilisation:panel data evidence from Spain
... the effects of UD on specialist visits using a hurdle RE NB2 ...Again, estimates differed by gender as the quantitative effects were positive but only statistically significant for ...the ... See full document
9
Impact of Human Immunodeficiency Virus Infection in Pregnant Women on Variant-Specific Immunity to Malaria
... delivery from consent- ing women giving birth in the labor ward of the Queen Elizabeth Central ...dislodged from the tissue by incubation at room temperature for 2 h on a roller and three washes (1,500 rpm ... See full document
65
Children's conceptions of masculinity : The mask : a thesis presented in partial fulfilment of the requirements for the degree of Master of Arts in Media Studies at Massey University
... James: Interviewer: Chris: Interviewer: Emily: Interviewer: Sarah: Interviewer: John: Interviewer: Andrew: Interviewer: Mark: Interviewer: Peter: Interviewer: George: Interviewer: Group:[r] ... See full document
42
Seroprevalence of hepatitis C virus among people living with HIV/AIDS in Latin America and the Caribbean: a systematic review
... Virus OR Human T Cell) AND (HCV OR HEPATITIS C OR HEPATITIS C VIRUS OR HEPACIVIRUS) AND (name of an individual country or territory in LAC). The following search terms were used in the LILACS database: (HIV OR ... See full document
71
A generic algorithm for reducing bias in parametric estimation
... bias-reduced estimate. For some specific families of models efficient estimation schemes have been developed by exploiting the specific structure of the ad- justments. For example, for generalized linear models ... See full document
83
Heterogeneity of Trypanosoma cruzi infection rates in vectors and animal reservoirs in Colombia: a systematic review and meta analysis
... Finally, an important limitation is related to diagnos- tic methods. An important recent study in triatomine vectors has identified that optical microscopy used for routine surveillance missed ~50–75% of infections and ... See full document
10
The Physiology and Host Genetics of Quantitative Resistance in Maize to the Fungal Pathogen Cochliobolus heterostrophus.
... loci from resistance studies for different diseases that occupy – non-randomly – the same position on a ...interference from other genes would need to be ruled out by creating and comparing near-isogenic ... See full document
30
Improved estimates of the benefits of breastfeeding using sibling comparisons to reduce selection bias
... After estimating the effects of breastfeeding in a typical between-family model, we estimate a within-family model to see whether differences in outcomes between two adolescent siblings [r] ... See full document
6
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