scholarly journals Study of risk factors for healthcare-associated infections in acute cardiac patients using categorical principal component analysis (CATPCA)

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Emilio Renes Carreño ◽  
Almudena Escribá Bárcena ◽  
Mercedes Catalán González ◽  
Francisco Álvarez Lerma ◽  
Mercedes Palomar Martínez ◽  
...  

AbstractUsing categorical principal component analysis, we aimed to determine the relationship between health care-associated infections (HAIs) and diagnostic categories (DCs) in patients with acute heart disease using data collected in the Spanish prospective ENVIN-HELICS intensive care registry over a 10-year period (2005–2015). A total of 69,876 admissions were included, of which 5597 developed HAIs. Two 2-component CATPCA models were developed. In the first model, all cases were included; the first component was determined by the duration of the invasive devices, the ICU stay, the APACHE II score and the HAIs; the second component was determined by the type of admission (medical or surgical) and by the DCs. No clear association between DCs and HAIs was found. Cronbach’s alpha was 0.899, and the variance accounted for (VAF) was 52.5%. The second model included only admissions that developed HAIs; the first component was determined by the duration of the invasive devices and the ICU stay; the second component was determined by the inflammatory response, the mortality in the ICU and the HAIs. Cronbach’s alpha value was 0.855, and VAF was 46.9%. These findings highlight the role of exposure to invasive devices in the development of HAIS in patients with acute heart disease.

Animals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 249
Author(s):  
Emmy A.E. van Houtert ◽  
Nienke Endenburg ◽  
Joris J. Wijnker ◽  
T. Bas Rodenburg ◽  
Hein A. van Lith ◽  
...  

The Monash Dog–Owner Relationship Scale (MDORS) is a questionnaire that is used to evaluate the perceived relationship between humans and their dog. This questionnaire was originally only formulated and validated in English, which limits its use among non-English speaking individuals. Although a translation could be made, the translation of questionnaires without additional validation often impairs the reliability of that questionnaire. Therefore, the aim of this study was to validate a translation of the MDORS that is suitable for use among native Dutch speakers. To achieve this, a Dutch translation of the MDORS was made and checked for spelling/grammar mistakes, readability, feasibility, and clarity. A test–retest comparison was subsequently performed on the translation together with a calculation of Cronbach’s alpha score and principal component analysis (PCA). Through the PCA, we found that the three-factor model of the original MDORS was also largely present in the Dutch translation. However, deviations were also found, as several questions did not achieve high PCA scores in their original factor. Therefore, we propose that these questions are excluded from the Dutch MDORS.


2020 ◽  
Vol 2 (1) ◽  
pp. 80-90
Author(s):  
Dyah Ayu Larasati ◽  
Tria Widyastuti

Individu memiliki cara yang berbeda dalam merespon kesalahan yang diperbuat. Ada yang cepat memaakan kesalahan diri sendiri, namun ada yang butuh waktu lama atau bahkan membenci diri sendiri karena kesalahan yang diperbuat. Konsep penting terkait hal tersebut yaitu pemaafan diri yang ternyata berimbas positif pada kesejahteraan psikologis dan kesehatan mental. Pengukuran pemaafan diri kemudian menjadi penting untuk mendukung semakin banyaknya penelitian pemaafan diri. Namun begitu, meski di luar sudah dikembangkanbeberapa skala pemaafan diri, di Indonesia belum banyak ditemukan penelitian yang khusus mengembangkan atau mengadaptasi skala ini. Dalam tulisan ini, peneliti bertujuan mengembangkan skala pemaafan diri yang diharapkan menjadi alat ukur yang valid dan reliabel. Peneliti melakukan tujuh tahapan pengembangan skala yaitu: (1) penentuan konstrak ukur, (2) penyusunan indikator-aitem, (3) pengujian validitas isi, (4) uji coba, (5) uji lapangan, (6) seleksi aitem, dan (7) penyusunan skala final. Hasil akhir penelitian ini dihasilkan 13 aitem skala pemaafan diriyang memiliki daya beda berkisar .337 hingga .676 dan reliabilitas Cronbach’s alpha ditemukan .798 (dimensi mengakui tanggung jawab) dan .779 (dimensi memperbarui diri). Skala pemaafan diri juga memiliki struktur internal yang cukup baik. Hasil analisis faktor dengan principal component analysis pada 13 aitem didapat nilai KMO=.833, Barlett’s Test of sphrecity X2(78)=447.594, p<.01. Dua dimensi pemaafan diri mampu menjelaskan sebesar 49.891% varian.


2020 ◽  
Author(s):  
Clara Moningka ◽  
Maria Selviana

Kemajuan teknologi Internet di dunia memunculkan fenomena baru dalam penggunaan media sosial. Media sosial tidak hanya digunakan untuk berhubungan dengan orang lain, namun juga untuk membentuk kesan yang baik, bahkan untuk melakukan manipulasi. Pengguna media sosial seringkali memanipulasi penampakan mereka di media sosial, seperti mengedit foto atau memalsukan identitas mereka. Fenomena ini termasuk dalam Deception Behavior (perilaku menipu). Meski fenomena ini sering dijumpai, belum banyak studi yang berupaya untuk mengukur kecenderungan seseorang untuk terlibat dalam perilaku menipu di media sosial. Oleh karena itu, penelitian ini bertujuan untuk membuat skala Deception Behavior in Social Media berdasarkan teori Utz (2005). Partisipan penelitian adalah pengguna aktif media sosial sebanyak 457 orang di wilayah Jabodetabek dengan rentang usia 15-40 tahun. Penelitian ini meliputi pembuatan butir dan pengujian dengan menggunakan Principal Component Analysis (PCA), dilanjutkan dengan Confirmatory Factor Analysis (CFA). Sementara itu, reliabilitas diuji dengan menggunakan koefisien Cronbach’s Alpha. Hasil penelitian menunjukkan bahwa skala ini reliabel untuk mengukur deception behavior di media sosial.


2008 ◽  
Vol 17 (2) ◽  
pp. 148-151 ◽  
Author(s):  
Carlos António Laranjeira

SummaryAims – To assess the validity and reliability of the GHQ-12 in Portugal. Methods – Using a standard ‘forwardbackward’ translation procedure, the English language version of the questionnaire was translated into Portuguese. To test reliability the internal consistency was assessed by Cronbach's alpha coefficient. Validity was performed using convergent validity. Finally, the factor structure of the questionnaire was extracted by performing principal component analysis using varimax rotation. Results – In all 790 undergraduates entered into the study. Reliability analysis showed satisfactory result (Cronbach's alpha coefficient = 0.91). Convergent validity indicated a significant negative correlation between the GHQ-12 and social support scores as expected (r = -0.54, P < 0.001). The principal component analysis showed that the GHQ-12 was a measure with two-factor structure. Conclusion – The Portuguese version of the GHQ-12 has a good structural characteristic for measuring psychological well being.Declaration of Interest: None.


1990 ◽  
Vol 1 (3) ◽  
pp. 131-144
Author(s):  
María Coscarón

Cluster analysis by four methods and a principal component analysis were performed using data on 24 morphological characters of 27 species of the genus Rasahus (Peiratinae). The results obtained by the different techniques show general agreement. They confirm the present number of taxa and reveal the existence within the genus of three groups of species: scutellaris , hamatus and vittatus. The scutellaris group is constituted by R. aeneus (Walker), R. maculipennis (Lepelletier and Serville), R. bifurcatas Champion, R. castaneus Coscarón, R. guttatipennis (Stål), R. flavovittarus Stål, R. costarricensis Coscarón, R. scutellaris (Fabricius), R. atratus Coscarón, R. peruensis Coscarón, R. paraguayensis Coscarón, R. surinamensis Coscarón, R. albomaculatus Mayr, R. brasiliensis Coscarón and R. sulcicollis (Serville).The hamatus group contains R. rufiventris (Walker), R. hamatus (Fabricius), R. amapaensis Coscarón, R. arcitenens Stål, R. limai Pinto, R. angulatus coscarón, R. thoracicus Stål, R. biguttatus (Say), R. arcuiger (Stål), R. argentinensis Coscarón and R. grandis Fallou. The vittatus group contains R. vittatus Coscarón. The characters used to separate the groups of species are: shape of the pygophore, shape of the parameres, basal plate complexity, shape of the postocular region and hemelytra pattern. Illustrations of the structures of major diagnostic importance are included.


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