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. 2022 Mar 2;480(7):1342–1350. doi: 10.1097/CORR.0000000000002158

Fig. 1.

Fig. 1

A-B These path diagrams represent the KOOS in young, active patient with ACL tears, including (A) the intended KOOS model, as described in the original development paper; and (B) acceptable modified KOOS model in the current dataset of young, active patients with ACL injuries, with standardized factor loadings. Correlations between latent variables are not depicted; in (B), these correlations range from 0.45 to 0.80 (p < 0.05). Items are labelled as follows: 7 symptoms items (s1-s7), 9 pain items (p1-p9), 17 ADL items (a1-a17), 5 sport and recreation items (sp1-sp5), 4 QOL items (q1-4); ADLs = activities of daily living; sport = sport and recreation function; QOL = quality of life.