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Fig. 7 | Acta Neurochirurgica

Fig. 7

From: Radiological predictors of shunt response in the diagnosis and treatment of idiopathic normal pressure hydrocephalus: a systematic review and meta-analysis

Fig. 7

A scatter plot of matrices (SPLOM), with bivariate scatter plots is shown: below the diagonal, histograms on the diagonal, and the Pearson correlation above the diagonal. One asterisk (*) indicates a statistical significance of p < 0.05, two asterisks (**) indicate p < 0.01, three asterisks (***) indicate p < 0.001. A correlation analysis is run for following variables for all included studies in the systematic review (n = 28): Patient sample size (“Sample”), mean age of the patients (“Age”), proportion of patient sample being female (“Females”), pre-existing diabetes mellitus (“DM”), pre-existing arterial hypertension (“HTN”), gait deficits (“Gaitdef”), cognitive deficits (“Cognitiondef”), urinary dysfunction (“Urinedef”), mean proportion of patients being shunt-responsive (“S-R”), and proportion of complications (“Complic”), mean patient scores on the Mini Mental State Exam (“MMSE”). Furthermore, mean patient scores for Evan’s Index (“EI”) and mean values for Callosal Angle (“CA”). The red line is the locally estimated scatterplot smoothing (LOASS) line, and the ellipse is the correlation estimate ellipse. And the shaded area is the confidence interval area of the LOASS line

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