Ordinary least squares (OLS) and phylogenetic generalized least-squares (PGLS) allometric regressions for mediolateral breadth of the patella (ML) relative to body mass (BM) and patellar size (GM).

Regressions were derived in the extant non-human anthropoids sample (8 species: 5 monkeys, 3 great apes) using female individuals data set (sex-pooled humans were not included in the analyses; see text for further explanation).Abbreviations: ML, mediolateral breadth of the patella; BM, body mass; GM, geometic mean based on the four lengths measured on the patella; s.e., standard deviation; CI, confidence interval; Adj, adjusted; DF, degrees of freedom.apt-statistic for the coefficient.