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Fig. 3 | BMC Oral Health

Fig. 3

From: Investigation of the presence of Non-carious cervical lesions (NCCLs) in ancient adult skulls: analyzing data from prehistoric and historical samples through a systematic review and meta-analysis

Fig. 3

Binary random effects model metric; proportion: 0.014; C.I. (Confidence Interval): (lower bound) 0.001(upper bound) 0.027; p-value 0.036; Standard error (SE): 0.007; Q = Q statistic; df = degrees of freedom; I2 (I^2) = Higgins heterogeneity index, I2 < 50%, heterogeneity low; P = p value; heterogeneity (Het.): tau^2: 0.000 Q (df = 5) 16.111, Het. p-value: 0.007, I^2: 68.964; The graph of each study shows the first author and the date of publication as well as the measurement of the number of skulls with NCCLs on the total skulls, and the relative proportion: with the confidence intervals reported. The final value with the relative confidence intervals is expressed in bold. The dashed red line shows the position of the average value, and the light blue diamond shows the measure of the average effect

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