Reference	Reason for exclusion
Adalarasu, K., Jagannath, M., & James, O. (2020). Assessment of techniques for teaching school children with autism. IRBM, 41(2), 88–93.	Quasi-experimental design
Albasha, H., Kelly, M., Andrews, J., & Rice, S. (2016). The effects of animal assisted intervention on the social initiation behaviors of children with an autism spectrum disorder. Journal of Investigative Medicine, 64(1), 264.	Insufficient evidence of randomization
Anderson, S., & Meints, K. (2016). Brief Report: The effects of equine-assisted activities on the social functioning in children and adolescents with autism spectrum disorder. Journal of Autism and Developmental Disorders, 46(10), 3344–3352.	Insufficient evidence of randomization
Ávila-Álvarez, A., Alonso-Bidegain, M., De-Rosende-Celeiro, I., Vizcaíno-Cela, M., Larrañeta-Alcalde, L., & Torres-Tobío, G. (2010). Improving social participation of children with autism spectrum disorder: Pilot testing of an early animal-assisted intervention in Spain. Health & Social Care in the Community, 28(4), 1220–1229.	Not RCT
Bass, M. M., Duchowny, C. A., & Llabre, M. M. (2009). The effect of therapeutic horseback riding on social functioning in children with autism. Journal of Autism and Developmental Disorders, 39(9), 1261–1267.	Included
Becker, J. L., Rogers, E. C., & Burrows, B. (2017). Animal-assisted social skills training for children with autism spectrum disorders. Anthrozoos, 30(2), 307–326.	Not RCT
Borgi, M., Loliva, D., Cerino, S., Chiarotti, F., Venerosi, A., Bramini, M., Nonnis, E., Marcelli, M., Vinti, C., De Santis, C., Bisacco, F., Fagerlie, M., Frascarelli, M., & Cirulli, F. (2016). Effectiveness of a standardized equine-assisted therapy program for children with autism spectrum disorder. Journal of Autism and Developmental Disorders, 46(1), 1–9.	Included
Burgoyne, L., Dowling, L., Fitzgerald, A., Connolly, M., Browne, J. P., & Perry, I. J. (2014). Parents’ perspectives on the value of assistance dogs for children with autism spectrum disorder: a cross-sectional study. BMJ Open, 4(6), Article e004786.	Not RCT
Coman, D. C., Bass, M. P., Alessandri, M., Ghilain, C. S., & Llabre, M. M. (2018). Effect of equine-assisted activities on social and sensory functioning of children with autism. Society & Animals: Journal of Human-Animal Studies, 26(6), 551–575.	Included
De Vita, T., Rosa, R., & Napolitano, F. (2018). PET-therapy as an innovative intervention tool in the autism spectrum disorder motor deficits. Acta Medica Mediterranea, 34, 1503–1506.	Not RCT
Elmaci, D. T., & Cevizci, S. (2015). Dog-assisted therapies and activities in rehabilitation of children with cerebral palsy and physical and mental disabilities. International Journal of Environmental Research and Public Health, 12(5), 5046–5060.	No ASD diagnosis
Funahashi, A., Gruebler, A., Aoki, T., Kadone, H., & Suzuki, K. (2014). Brief Report: The smiles of a child with autism spectrum disorder during an animal-assisted activity may facilitate social positive behaviors-quantitative analysis with smile-detecting interface. Journal of Autism and Developmental Disorders, 44(3), 685–693.	Not RCT
Fung, S. C. (2011). The role of therapy dog in facilitating social interaction for autistic children: An experimental study on animal-assisted play therapy. Chinese University of Hong Kong.	Insufficient evidence of randomization
Fung, S. C., & Leung, A. S. M. (2014). Pilot study investigating the role of therapy dogs in facilitating social interaction among children with autism. Journal of Contemporary Psychotherapy, 44(4), 253–262.	Insufficient evidence of randomization
Gabriels, R. L., Agnew, J. A., Holt, K. D., Shoffner, A., Zhaoxing, P., Ruzzano, S., Clayton, G. H., & Mesibov, G. (2012). Pilot study measuring the effects of therapeutic horseback riding on school-age children and adolescents with autism spectrum disorders. Research in Autism Spectrum Disorders, 6(2), 578–588.	No social outcome
Gabriels, R. L., Pan, Z., Dechant, B., Agnew, J. A., Brim, N., & Mesibov, G. (2015). Randomized controlled trial of therapeutic horseback riding in children and adolescents with autism spectrum disorder. Journal of the American Academy of Child and Adolescent Psychiatry, 54(7), 541–549.	Included
Gabriels, R. L., Pan, Z., Guérin, N. A., Dechant, B., & Mesibov, G. (2018). Long-term effect of therapeutic horseback riding in youth with autism spectrum disorder: A randomized trial. Frontiers in Veterinary Science, 5, Article 156.	Included
Garcia-Gomez, A., Risco, M. L., Rubio, J. C., Guerrero, E., & García-Peña, I. M. (2014). Effects of a program of adapted therapeutic horse-riding in a group of autism spectrum disorder children. Electronic Journal of Research in Educational Psychology, 12(1), 107–128.	Insufficient evidence of randomization
Germone, M. M., Gabriels, R. L., Guérin, N. A., Pan, Z., Banks, T., & O’Haire. M. E. (2019). Animal-assisted activity improves social behaviors in psychiatrically hospitalized youth with autism. Autism, 23(7), 1740–1751.	Not RCT
Grandgeorge, M., Gautier, Y., Brugaillères, P., Tiercelin, I., Jacq, C., Lebret, M.-C., & Hausberger, M. (2017). Social rivalry triggers visual attention in children with autism spectrum disorders. Scientific Reports, 7, Article 10029	No social outcome
Grandgeorge, M., Tordjman, S., Lazartigues, A., Lemonnier, E., Deleau, M., & Hausberger, M. (2012). Does pet arrival trigger prosocial behaviors in individuals with autism? PLOS ONE, 7(8), Article e41739	Quasi-experimental design
Grey, A. C. (2008).The effects of therapeutic horseback riding with autistic children. Dissertation Abstracts International: Section B: The Sciences and Engineering, 68(11-B), 7663.	Quasi-experimental design
Haight, D. G. (2012). Will the use of therapy dogs provide greater motivation for multiply disabled children. Dissertation Abstracts International: Section B: The Sciences and Engineering, 72(8-B), 5009.	Dissertation or conference abstract
Hall, S. S., Wright, H. F., Hames, A., & Mills, D. S. (2016). The long-term benefits of dog ownership in families with children with autism. Journal of Veterinary Behavior-Clinical Applications and Research, 13, 46–54.	No social outcome
Hameury, L., Cavagnino, D. T., & Bhat, A. N. (2010). Equine-assisted therapy and autism. Annales Medico-Psychologiques, 168(9), 655–659.	Non-English language
Harris, A., & Williams, J. M. (2017). The impact of a horse riding intervention on the social functioning of children with autism spectrum disorder. International Journal of Environmental Research and Public Health, 14(7), Article 776.	Insufficient evidence of randomization
Hill, J., Ziviani, J., Driscoll, C., Teoh, A. L., Chua, J. M., & Cawdell-Smith, J. (2020). Canine assisted occupational therapy for children on the autism spectrum: A pilot randomised control trial. Journal of Autism and Developmental Disorders, 50(11), 4106–4120.	No social outcome
Holm, M. B., Baird, J. M., Kim, Y. J., Rajora, K. B., D’Silva, D., Podolinsky, L., Mazefsky, C., & Minshew, N. (2014). Therapeutic horseback riding outcomes of parent-identified goals for children with autism spectrum disorder: An ABA’ multiple case design examining dosing and generalization to the home and community. Journal of Autism and Developmental Disorders, 44(4), 937–947.	Not RCT
Jenkins, S. R., & Reed, F. D. D. (2013). An experimental analysis of the effects of therapeutic horseback riding on the behavior of children with autism. Research in Autism Spectrum Disorders, 7(6), 721–740.	Insufficient evidence of randomization
Katcher, A., & Teumer, S. (2006). A 4 year trial of animal-assisted therapy with public school special education students. In A. Fine (Ed.), Handbook on animal-assisted therapy: Theoretical foundations and guidelines for practice (2nd ed., pp. 227–242). Elsevier.	Not RCT
Kern, J. K., Fletcher, C. L., Garver, C. R., Mehta, J. A., Grannemann, B. D., Knox, K. R., Richardson, T. A., & Trivedi, M. H. (2011). Prospective trial of equine-assisted activities in autism spectrum disorder. Alternative Therapies in Health and Medicine, 17(3), 14–20.	Not RCT
Kregiel, A., Zaworski, K., & Kolodziej, E. (2019). Effects of animal-assisted therapy on parent-reported behaviour and motor activity of children with autism spectrum disorder. Health Problems of Civilization, 13(4), 273–278.	Insufficient evidence of randomization
Kwon, S., Sung, I. Y., Ko, E. J., & Kim, H. S. (2019). Effects of therapeutic horseback riding on cognition and language in children with autism spectrum disorder or intellectual disability: A preliminary study. Annals of Rehabilitation Medicine-Arm, 43(3), 279–288.	No social outcome
Lanning, B. A., Matyastik Baier, M. E., Ivey-Hatz, J., Krenek, N., & Tubbs, J. D. (2014). Effects of equine assisted activities on autism spectrum disorder. Journal of Autism and Developmental Disorders, 44(8), 1897–1907.	Insufficient evidence of randomization
Morales-Moreno, I., Cerezo-Chuecos, F., Balanza-Galindo, S., Gómez-Díaz, M., & Echevarría-Pérez, P. (2020). Implementation of assisted therapy with dogs in the therapeutic approach to people with autistic spectrum disorder. Holistic Nursing Practice, 34(5), 282–290.	Insufficient evidence of randomization
O’Haire, M. E., Mckenzie, S. J., Beck, A. M., & Slaughter, V. (2013). Social behaviors increase in children with autism in the presence of animals compared to toys. PLOS ONE, 8(2), Article e57010.	Insufficient evidence of randomization
O’Haire, M. E., McKenzie, S. J., McCune, S., & Slaughter, V. (2013). Effects of animal-assisted activities with guinea pigs in the primary school classroom. Anthrozoos, 26(3), 445–458.	Insufficient evidence of randomization
O’Haire, M. E., McKenzie, S. J., McCune, S., & Slaughter, V. (2014). Effects of classroom animal-assisted activities on social functioning in children with autism spectrum disorder. Journal of Alternative and Complementary Medicine, 20(3), 162–168.	Insufficient evidence of randomization
Ozyurt, G., Dinsever, Ç., Akpınar, S., Özcan, K., Şal, Y., & Öztürk, Y. (2017). The effect of therapeutic horseback riding for children diagnosed with autism spectrum disorder on autistic symptoms and the quality of life. Anadolu Psikiyatri Dergisi / Anatolian Journal of Psychiatry, 18(6), 630–636.	Insufficient evidence of randomization
Ozyurt, G., Ozcan, K., Elikucuk, C. D., Odek, U., & Akpinar, S. (2020). Equine assisted activities have positive effects on children with autism spectrum disorder and family functioning. Montenegrin Journal of Sports Science and Medicine, 9(2), 51–58.	Included
Page, C. E. (2013). The social and emotional benefits of therapeutic riding on children with autism spectrum disorder. Dissertation Abstracts International: Section B: The Sciences and Engineering, 74(3-B(E)), No-Specified.	Dissertation or conference abstract
Pan, Z., Granger, D. A., Guerin, N. A., Shoffner, A., & Gabriels, R. L. (2019). Replication pilot trial of therapeutic horseback riding and cortisol collection with children on the autism spectrum. Frontiers in Veterinary Science, 5, Article 312.	Included
Peters, B. C., Wood, W., Hepburn, S., & Bundy, A. (2020). Pilot Study: Occupational therapy in an equine environment for youth with autism. OTJR-Occupation Participation and Health, 40(3), 190–202.	Not RCT
Petrongelli-Halloran, L. M. (2012). Evaluation of prosocial behaviours during animal-assisted therapy for children with pervasive developmental disorders. Dissertation Abstracts International: Section B: The Sciences and Engineering, 72(10-B), 6394.	Dissertation or conference abstract
Petty, J. D., Pan, Z., Dechant, B., & Gabriels, R. L. (2017). Therapeutic horseback riding crossover effects of attachment behaviours with family pets in a sample of children with autism spectrum disorder. International Journal of Environmental Research and Public Health, 14(3), 256.	No social outcome
Prothmann, A., Albrecht, K., Dietrich, S., Hornfeck, U., Stieber, S., & Ettrich, C. (2005). Analysis of child-dog play behaviour in child psychiatry. Anthrozoos, 18(1), 43–58.	No social outcome
Souza-Santos, C., Dos Santos, J. F., Azevedo-Santos, I., & Teixeira-Machado, L. (2018). Dance and equine-assisted therapy in autism spectrum disorder: Crossover randomized clinical trial. Clinical Neuropsychiatry, 15(5), 284–290.	Included
Steiner, H., & Kertesz, Z. (2015). Effects of therapeutic horse riding on gait cycle parameters and some aspects of behaviour of children with autism. Acta Physiologica Hungarica, 102(3), 324–335.	No social outcome
Steiner, H., & Kertesz, Z. (2012, December 2–5). Effect of therapeutic riding on Gait Cycle parameters and behavioural skills of autistic children (A controlled study) [Conference session]. 3rd IEEE International Conference on Cognitive Infocommunications, Kosice.	Not RCT
Uccheddu, S., Albertini, M., Pierantoni, L., Fantino, S., & Pirrone, F. (2019). The impacts of a reading-to-dog programme on attending and reading of nine children with autism spectrum disorders. Animals, 9(8), Article 491.	Included
Ward, S. C., Whalon, K., Rusnak, K., Wendell, K., & Paschall, N. (2013). The association between therapeutic horseback riding and the social communication and sensory reactions of children with autism. Journal of Autism and Developmental Disorders, 43(9), 2190–2198.	Not RCT
Welsh, K. C. (2010). The use of dogs to impact joint attention in children with autism spectrum disorders. Dissertation Abstracts International: Section B: The Sciences and Engineering, 70(7-B), 4500.	Not RCT
Wild, D. L. (2013). The impact of canine assistance for children with autism and the family unit. Dissertation Abstracts International Section A: Humanities and Social Sciences, 73(8-A(E)), No-Specified.	Dissertation or conference abstract
Wright, H., Hall, S., Hames, A., Hardiman, J., Mills, R., PAWS Team, & Mills, D. S. (2015). Acquiring a pet dog significantly reduces stress of primary carers for children with autism spectrum disorder: A prospective case control study. Journal of Autism & Developmental Disorders, 45(8), 2531–2540.	No social outcome
Wright, H., Hall, S., Hames, A., Hardiman, J., Mills, R., PAWS Team, & Mills, D. S. (2015). Pet dogs improve family functioning and reduce anxiety in children with autism spectrum disorder. Anthrozoos, 28(4), 611–624.	No social outcome