Tables Electronic Supplementary Material Table S1. Search strategy and results from each included database Keywords AMED CINAHL EMBASE MEDLINE WoS ARTHRALGIA/ OR pain 25135 216230 710407 441977 334687 KNEE JOINT/ OR KNEE/ OR PATELLA/ 4166 9449 42923 49222 93798 1 AND 2 929 6526 7409 7494 16216 ((((patell* OR femoropatell* OR femoro-patell* OR retropatell*) AND (pain OR syndrome OR dysfunction)))).ti,ab ((((lateral compression OR lateral facet OR lateral pressure OR odd facet) AND (pain OR syndrome OR dysfunction)))).ti,ab ((((chondromalac* OR chondropath*) AND (knee* OR patell* OR femoropatell* OR femoro-patell* OR retropatell*)))).ti,ab ((anterior AND knee AND pain)).ti,ab 549 1199 4801 3904 1004 3 344 27 20 28 32 70 997 822 309 241 535 2500 2038 296 3 OR 4 OR 5 OR 6 1201 7819 12322 10647 16952 predict*.ti,ab 9532 93290 1029853 846964 384763 8 AND 9 63 387 631 484 323 ti = Title, ab = abstract 1 5 Electronic Supplementary Material Table S2 - Quality assessment score allocations for each included study, including subsequent inter-rater reliability for each item, component and overall score Study Witvrouw et al. [27] Barton et al. [20] Barton et al. [32] Crowell et al. [42] Iverson et al. [37] Pattyn et al. [25] Sutlive et al. [23] Lesher et al. [22] Lan et al. [30] Vicenzino et al. [19] Natri et al. [26] Kannus et el [31] Selfe et al. [29] Piva et al. [24] Wittstein et al. [28] 1.1 IC (/2) 1.2 EC (/2) 1.3 Ad.no (/4) 1.4 Hom (/2) 1 Pop (/10) 2.1 S/D (/4) 2.2 C/PIA (/4) 2.3 C/A (/2) 2 Int (/10) 3.1 RO (/4) 3.2 BOA (/4) 3.3 F/uA (/2) 3 OM (/10) 4.1 RD (/2) 4.2 Dropouts (/2) 4.3 ITT (/2) 4.4 SP (/4) 4 DP/A (/10) Total score (/40) TPS (%) 2 1 2 0 5 4 0 2 6 4 2 1 7 0 2 0 4 6 24 60 2 2 2 0 6 4 0 2 6 4 0 1 5 0 1 0 4 5 22 55 2 2 0 0 4 4 0 2 6 4 0 1 5 0 2 0 4 6 21 53 1 2 1 0 4 4 0 2 6 4 0 0 4 0 2 0 4 6 20 50 2 2 0 0 4 4 0 2 6 4 0 0 4 0 2 0 4 6 20 50 2 1 1 0 4 4 0 1 5 3 2 0 5 0 2 0 4 6 20 50 2 2 0 0 4 4 0 2 6 3 0 0 3 0 2 0 4 6 19 48 2 2 0 0 4 4 0 2 6 3 0 0 3 0 2 0 4 6 19 48 2 2 2 0 6 4 0 0 4 4 0 0 4 0 2 0 2 4 18 45 2 2 0 0 4 4 0 0 4 4 0 1 5 0 1 0 4 5 18 45 2 1 0 0 3 2 0 1 3 4 0 2 6 0 2 0 4 6 18 45 2 1 0 0 3 2 0 1 3 4 0 2 6 0 2 0 4 6 18 45 1 2 2 0 5 2 0 2 4 4 0 1 5 0 1 0 1 2 16 40 2 2 0 0 4 4 0 0 4 3 0 0 3 0 2 0 3 5 16 40 1 1 2 0 4 2 0 0 2 3 0 0 3 0 2 0 4 6 15 38 2 IC=inclusion criteria; EC=exclusion criteria; Ad. no.=adequate number; Hom=homogeneity; Pop=population; S/D=standardized and described; C/PlA=control and placebo adequate; C/A=co-intervention avoided; Int=interventions; RO=relevant outcome; BOA=blinded outcome assessment; F/uA=follow-up adequate; OM=outcome measures; RD=randomization described; ITT=intention to treat; SP=statistical procedures; DP/A=data presentation and analysis;TPS = total possible score; 3 4