Assessment of surface water quality using statistical analysis methods: Orontes River (Case study) by Lina Khouri, Muhammad Bashar Al-Mufti

“…This indicates the importance of cluster analysis in studying movement of the pollutants and reducing the number of sampling points. Factor analysis gave 5 main factors responsible for explaining 92.86% of the total variance, with 78.2% measurement quality, it includes 7 basic parameters: (EC, TUR, NO3, Na, pH, NH4, COD). …”
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Contextual and individual inequalities of multimorbidity in Brazilian adults: a cross-sectional national-based study by Bruno P Nunes, Tiago N Munhoz, Sanghamitra Pati, Elaine Thumé, Alexandre D P Chiavegatto Filho, Doralice S Cruz Teixeira, Thaynã R Flores, Fabio A Camargo-Figuera, Luiz A Facchini, Sandro R Rodrigues Batista

“…The outcome was analysed taking ≥2 and ≥3 diseases as cut-off points. Factor analysis (FA) was used to identify disease patterns and multilevel models were used to test association with individual and contextual variables.Results The sample comprised 60 202 individuals. …”
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