scholarly journals Diagnostic checking for multivariate regression models

2008 ◽  
Vol 99 (9) ◽  
pp. 1841-1859 ◽  
Author(s):  
Lixing Zhu ◽  
Ruoqing Zhu ◽  
Song Song
Keyword(s):  
Multivariate Regression ◽  
Regression Models ◽  
Diagnostic Checking

Wireless Sensor Networks for Irrigation in Crops Using Multivariate Regression Models

2018 ◽  
Author(s):  
Paul D. Rosero-Montalvo ◽  
Jose Pijal-Rojas ◽  
Carlos Vasquez-Ayala ◽  
Edgar Maya ◽  
Carlos Pupiales ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Multivariate Regression ◽  
Regression Models ◽  
Wireless Sensor

scholarly journals COVID-19 vaccine hesitancy among persons living in homeless shelters in France

2021 ◽  
Author(s):  
C Longchamps ◽  
S Ducarroz ◽  
L Crouzet ◽  
N. Vignier ◽  
L. Pourtau ◽  
...  
Keyword(s):  
General Population ◽  
Multivariate Regression ◽  
Regression Models ◽  
Homeless Persons ◽  
Homeless Shelters ◽  
Vaccine Hesitancy ◽  
Factors Associated ◽  
Risks And Benefits ◽  
Unequal Access ◽  
Study Participants

AbstractCOVID-19 vaccine hesitancy is frequent and can constitute a barrier to the dissemination of vaccines once they are available. Unequal access to vaccines may also contribute to socioeconomic inequalities with regard to COVID-19. We studied vaccine hesitancy among persons living in homeless shelters in France between May and June 2020 (n=235). Overall, 40.9% of study participants reported vaccine hesitancy, which is comparable to general population trends in France. In multivariate regression models, factors associated with vaccine hesitancy are: being a woman (OR=2.55; 95% CI 1.40-4.74), living with a partner (OR=2.48, 95% CI 1.17-5.41), no legal residence in France (OR=0.51, 95% CI 0.27-0.92), and health literacy (OR=0.38, 95% CI 0.21, 0.68). Our results suggest that trends in vaccine hesitancy and associated factors are similar among homeless persons as in the general population. Dissemination of information on vaccine risks and benefits needs to be adapted to persons who experience severe disadvantage.

Women in the Legislatures and Executives of the World: Knocking at the Highest Glass Ceiling

1999 ◽  
Vol 51 (4) ◽  
pp. 547-572 ◽  
Author(s):  
Andrew Reynolds
Keyword(s):  
Multivariate Regression ◽  
Regression Models ◽  
Socioeconomic Development ◽  
Party System ◽  
Political Representation ◽  
Parliamentary System ◽  
Dependent Variables ◽  
The World ◽  
Political Office ◽  
Women In Parliament

This article reports the results of a survey of women in legislatures and executives around the world as they were constituted in 1998 (N = 180). The chief hypotheses regarding the factors hindering or facilitating women's access to political representation were tested by multivariate regression models. The regression models juxtaposed a cocktail of institutional, political, cultural, and socioeconomic variables with the following dependent variables: (1) the percentage of MPs who are women and (2) the percentage of cabinet ministers who are women.A number, although not all, of the cited hypotheses were statistically confirmed and more finely quantified. The socioeconomic development of women in society has an effect on the number of women in parliament but not in the cabinet. A country's length of experience with multipartyism and women's enfranchisement correlates with both the legislative and the executive percentage. Certain electoral systems are more women friendly than others. The ideological nature of the party system affects the number of women elected and chosen for cabinet posts. And last, the state's dominant religion, taken as a proxy for culture, also statistically relates to the number of women who will make it to high political office. However, other long-held hypotheses were not proved. The degree of democracy is not a good indicator of the percentage of women who will make it into the legislature or the cabinet, nor is the dichotomy between a presidential or parliamentary system.

Effect of the Containment Type on Clinical Outcomes in Osteochondral Lesions of the Talus Treated With Autologous Osteochondral Transplantation

2018 ◽  
Vol 46 (9) ◽  
pp. 2096-2102 ◽  
Author(s):  
Yoshiharu Shimozono ◽  
Johanna C.E. Donders ◽  
Youichi Yasui ◽  
Eoghan T. Hurley ◽  
Timothy W. Deyer ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Clinical Outcomes ◽  
Multivariate Regression ◽  
Regression Models ◽  
Short Form ◽  
Osteochondral Lesions ◽  
Osteochondral Transplantation ◽  
Autologous Osteochondral Transplantation ◽  
Type Group

Background: Uncontained-type osteochondral lesions of the talus (OLTs) have been shown to have inferior clinical outcomes after treatment with bone marrow stimulation. While autologous osteochondral transplantation (AOT) is indicated for larger lesions, no study has reported on the prognostic significance of the containment of OLTs treated with the AOT procedure. Purpose: To clarify the effect of the containment of OLTs on clinical and radiological outcomes in patients who underwent AOT for OLTs. Study Design: Case control study; Level of evidence, 3. Methods: A retrospective cohort study comparing patients with contained-type and uncontained-type OLTs was undertaken to include all patients who underwent AOT for the treatment of OLTs between 2006 and 2014. Analyses were performed by grouping the patients according to the containment type. Clinical outcomes were evaluated using the Foot and Ankle Outcome Score (FAOS) and the 12-Item Short Form Health Survey (SF-12) preoperatively and at final follow-up. Magnetic resonance imaging (MRI) at 2 years’ follow-up was evaluated with the modified magnetic resonance observation of cartilage repair tissue (MOCART) score. Multivariate regression models were used to evaluate factors affecting postoperative FAOS, SF-12, and MOCART scores. Results: Ninety-four patients were included: 31 patients with a contained-type OLT and 63 patients with an uncontained-type OLT. The median patient age was 34 years (interquartile range [IQR], 28-48 years) in the contained-type group and 36 years (IQR, 27-46 years) in the uncontained-type group. The median follow-up time was 45 months (IQR, 38-63 months) in the contained-type group and 52 months (IQR, 40-66 months) in the uncontained-type group. The median FAOS and SF-12 scores improved significantly after surgery in both contained-type and uncontained-type lesions ( P < .001). The median postoperative FAOS score of patients with contained-type OLTs was higher than that of patients with uncontained-type OLTs (91.7 vs 85.0, respectively; P = .009), but no significant differences were found between the contained-type and uncontained-type groups for postoperative SF-12 and MOCART scores. The multivariate regression models showed that patients with contained-type OLTs had an approximately 10-point better score on the FAOS compared with patients with uncontained-type OLTs ( P = .006). There was a nonsignificant trend for the rate of cystic occurrence in uncontained-type OLTs to be higher than that of contained-type OLTs (55.6% vs 38.7%, respectively; P = .125). Conclusion: Patients with contained-type OLTs experienced better clinical outcomes than those with uncontained-type OLTs after AOT for the treatment of OLTs. However, the AOT procedure still provided good clinical and MRI outcomes in both contained-type and uncontained-type OLTs at midterm follow-up.

scholarly journals Association of Malnutrition Measures with the Risk of Malaria in Sierra Leone

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 908-908
Author(s):  
Caroline Smerdon ◽  
Hyun Kim
Keyword(s):  
Nutritional Status ◽  
Sierra Leone ◽  
Multivariate Regression ◽  
Regression Models ◽  
Malaria Prevention ◽  
P Value ◽  
Prevention Measures ◽  
Funding Sources ◽  
Positive Correlations ◽  
The Relationship

Abstract Objectives This study examined the relationship between malnutrition and malaria among children under five in Sierra Leone. It was predicted that children who displayed anthropometric indicators for malnutrition (stunting, wasting, underweight) would be at a higher risk for contracting malaria than children who did not. Methods Data on height, weight, malaria status and use of malaria prevention measures were collected from patients aged 1 month to 60 months at Magbenteh Community Hospital in Makeni, Sierra Leone using a survey in July 2019 (n = 153). Multivariate regression models were used in order to determine the association between nutritional status and risk of contracting malaria. Results Participants who were underweight were found to be 18.56% more likely to contract malaria (p-value = 0.029). Non-statistically significant positive correlations were also found between stunting and risk of contracting malaria (7.15% more likely, p-value = 0.446) and wasting and risk of contracting malaria (5.82% more likely, p-value = 0.528). Conclusions The outcomes of this study would contribute to a better understanding of the risk factors for malaria and the relationship between nutritional status and malaria. Understanding this relationship is essential for developing public health interventions in geographic locations where these conditions co-exist. Funding Sources N/A.

Ramadan’s impact on the optimism of analysts’ recommendations

2019 ◽  
Vol 12 (5) ◽  
pp. 727-742
Author(s):  
Harit Satt ◽  
Sarah Nechbaoui ◽  
M. Kabir Hassan ◽  
Selma Izadi
Keyword(s):  
Population Growth ◽  
Multivariate Regression ◽  
Regression Models ◽  
Design Methodology ◽  
Stock Exchanges ◽  
Information Uncertainty ◽  
Mena Region ◽  
World Religions ◽  
Content Type ◽  
The Impact

Purpose This paper aims to document the impact of Ramadan on the optimism of analysts’ recommendations taking as a sample the countries of the MENA region during the period between 2004 and 2015. The choice of these countries can be explained by the fact that their population is predominantly of a Muslim faith (The Future of World Religions: Population Growth Projections, 2010-2050, 2015). Design/methodology/approach The authors used univariate and multivariate regression models to highlight the existence of the Ramadan effect on the optimism of analysts. They have found that pre-holiday optimism is significantly lower than post-holiday optimism. Findings This paper also documented the effect of analysts’ experience and information uncertainty on the analysts’ optimism level that allowed us to infer that low experience enhances optimism, while environment with low information uncertainty tends to decrease the level of optimism. Originality/value Previous research on this topic has investigated the effect of months of the year, turns of the month and days-of-the-week on the behavior of stock exchanges. Another strand of the literature also analyzed the effect of holidays on the latter. However, this is the first attempt to investigate this effect on analysts’ recommendations optimism when the holiday period is related to Islam.

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