scholarly journals Determinants of spread, credit ratings and creditworthiness for emerging market sovereign debt: a follow-up study using pooled data analysis

2004 ◽  
Author(s):  
Peter Rowland
Keyword(s):  
Data Analysis ◽  
Sovereign Debt ◽  
Emerging Market ◽  
Credit Ratings ◽  
Pooled Data ◽  
Follow Up Study

scholarly journals Post-chikungunya chronic inflammatory rheumatism: results from a retrospective follow-up study of 283 adult and child cases in La Virginia, Risaralda, Colombia

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 360 ◽  
Author(s):  
Alfonso J. Rodriguez-Morales ◽  
Andrés F. Gil-Restrepo ◽  
Valeria Ramírez-Jaramillo ◽  
Cindy P. Montoya-Arias ◽  
Wilmer F. Acevedo-Mendoza ◽  
...  
Keyword(s):  
Latin America ◽  
Clinical Symptoms ◽  
Morning Stiffness ◽  
Age Groups ◽  
Medical Attention ◽  
La Réunion ◽  
Pooled Data ◽  
Follow Up Study ◽  
And Gender

Objective: There are limited studies in Latin America regarding the chronic consequences of the Chikungunya virus (CHIK), such as post-CHIK chronic inflammatory rheumatism (pCHIK-CIR). We assessed the largest cohort so far of pCHIK-CIR in Latin America, at the municipality of La Virginia, Risaralda, a new endemic area of CHIK in Colombia.Methods: We conducted a cohort retrospective study in Colombia of 283 patients diagnosed with CHIK that persisted with pCHIK-CIR after a minimum of 6 weeks and up to a maximum of 26.1 weeks. pCHIK cases were identified according to validated criteria via telephone.Results: Of the total CHIK-infected subjects, 152 (53.7%) reported persistent rheumatological symptoms (pCHIK-CIR). All of these patients reported joint pains (chronic polyarthralgia, pCHIK-CPA), 49.5% morning stiffness, 40.6% joint edema, and 16.6% joint redness. Of all patients, 19.4% required and attended for care prior to the current study assessment (1.4% consulting rheumatologists). Significant differences in the frequency were observed according to age groups and gender. Patients aged >40 years old required more medical attention (39.5%) than those ≤40 years-old (12.1%) (RR=4.748, 95%CI 2.550-8.840).Conclusions: According to our results, at least half of the patients with CHIK developed chronic rheumatologic sequelae, and from those with pCHIK-CPA, nearly half presented clinical symptoms consistent with inflammatory forms of the disease. These results support previous estimates obtained from pooled data of studies in La Reunion (France) and India and are consistent with the results published previously from other Colombian cohorts in Venadillo (Tolima) and Since (Sucre).

OC-0455 MULTIVARIATE PREDICTION OF FOLLOW-UP OUTCOME FOR PATIENTS WITH PANCREATIC CANCER: A POOLED DATA ANALYSIS

2012 ◽  
Vol 103 ◽  
pp. S182
Author(s):  
G.C. Mattiucci ◽  
R.G.P.M. van Stiphout ◽  
S. Alfieri ◽  
F.A. Calvo ◽  
J.B. Dubois ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Data Analysis ◽  
Pooled Data ◽  
Multivariate Prediction

scholarly journals Post-chikungunya chronic inflammatory rheumatism: results from a retrospective follow-up study of 283 adult and child cases in La Virginia, Risaralda, Colombia

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 360 ◽  
Author(s):  
Alfonso J. Rodriguez-Morales ◽  
Andrés F. Gil-Restrepo ◽  
Valeria Ramírez-Jaramillo ◽  
Cindy P. Montoya-Arias ◽  
Wilmer F. Acevedo-Mendoza ◽  
...  
Keyword(s):  
Latin America ◽  
Clinical Symptoms ◽  
Morning Stiffness ◽  
Age Groups ◽  
Medical Attention ◽  
La Réunion ◽  
Pooled Data ◽  
Follow Up Study ◽  
And Gender

Objective: There are limited studies in Latin America regarding the chronic consequences of the Chikungunya virus (CHIK), such as post-CHIK chronic inflammatory rheumatism (pCHIK-CIR). We assessed the largest cohort so far of pCHIK-CIR in Latin America, at the municipality of La Virginia, Risaralda, a new endemic area of CHIK in Colombia.Methods: We conducted a cohort retrospective study in Colombia of 283 patients diagnosed with CHIK that persisted with pCHIK-CIR after a minimum of 6 weeks and up to a maximum of 26.1 weeks. pCHIK cases were identified according to validated criteria via telephone.Results: Of the total CHIK-infected subjects, 152 (53.7%) reported persistent rheumatological symptoms (pCHIK-CIR). All of these patients reported joint pains (chronic polyarthralgia, pCHIK-CPA), 49.5% morning stiffness, 40.6% joint edema, and 16.6% joint redness. Of all patients, 19.4% required and attended for care prior to the current study assessment (1.4% consulting rheumatologists). Significant differences in the frequency were observed according to age groups and gender. Patients aged >40 years old required more medical attention (39.5%) than those ≤40 years-old (12.1%) (RR=4.748, 95%CI 2.550-8.840).Conclusions: According to our results, at least half of the patients with CHIK developed chronic rheumatologic sequelae, and from those with pCHIK-CPA, nearly half presented clinical symptoms consistent with inflammatory forms of the disease. These results support previous estimates obtained from pooled data of studies in La Reunion (France) and India and are consistent with the results published previously from other Colombian cohorts in Venadillo (Tolima) and Since (Sucre).

INCOMPLETE DATA ANALYSIS IN LEAD EXPOSURE FOLLOW-UP STUDY

Epidemiology ◽  
2004 ◽  
Vol 15 (4) ◽  
pp. S144-S145
Author(s):  
Rima Kregzdyte ◽  
Dale Baranauskiene ◽  
Rima Naginiene ◽  
Oleg Abdrakhmanov
Keyword(s):  
Data Analysis ◽  
Lead Exposure ◽  
Incomplete Data ◽  
Follow Up Study

scholarly journals Graphical Perception of Value Distributions: An Evaluation of Non-Expert Viewers' Data Literacy

2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Arkaitz Zubiaga ◽  
Brian Mac Namee
Keyword(s):  
Data Analysis ◽  
User Study ◽  
User Studies ◽  
Data Literacy ◽  
Follow Up Study ◽  
Design Charts ◽  
Distribution Of Values ◽  
Different Types ◽  
Accurate Perception

An ability to understand the outputs of data analysis is a key characteristic of data literacy and the inclusion of data visualisations is ubiquitous in the output of modern data analysis. Several aspects still remain unresolved, however, on the question of choosing data visualisations that lead viewers to an optimal interpretation of data. This is especially true when audiences have differing degrees of data literacy. In this paper we describe two user studies on perception from data visualisations, in which we measured the ability of participants to validate statements about the distributions of data samples visualised using different chart types. In the first user study, we find that histograms are the most suitable chart type for illustrating the distribution of values for a variable. We contrast our findings with previous research in the field, and posit three main issues identified from the study. Most notably, however, we show that viewers struggle to identify scenarios in which a chart simply does not contain enough information to validate a statement about the data that it represents. In the follow-up study, we ask viewers questions about quantification of frequencies, and identification of most frequent values from different types of histograms and density traces showing one or two distributions of values. This study reveals that viewers do better with histograms when they need to quantify the values displayed in a chart. Among the different types of histograms, interspersing the bars of two distributions in a histogram leads to the most accurate perception. Even though interspersing bars makes them thinner, the advantage of having both distributions clearly visible pays off. The findings of these user studies provide insight to assist designers in creating optimal charts that enable comparison of distributions, and emphasise the importance of using an understanding of the limits of viewers’ data literacy to design charts effectively.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

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