StudyReason for Exclusion
Classification of endometriosis, Fertility and sterility, 32, 633, 1979Narrative review
Acosta, A. A., Buttram, V. C., Jr., Besch, P. K., Malinak, L. R., Franklin, R. R., Vanderheyden, J. D., A proposed classification of pelvic endometriosis, Obstetrics & Gynecology, 42, 19–25, 1973A classification system has been proposed but its effectiveness has not been evaluated
Anonymous, Classification of endometriosis. The American Fertility Society, Fertility & Sterility, 32, 633–4, 1979Letter
Bardis, N., Pistofidis, G. A., Chatzirafail, V., Balinakos, P., Filippidis, M., Enzian Scoring System (ESS) for the assessment of pelvic pain in women with deep comparison between the American Fertility Society (AFS) scoring system versus the infiltrating endometriosis, Gynecological Surgery, 6, S160, 2009Surgical outcomes not evaluated
Bassil Lasmar, R., Simoes Abraao, M., Lasmar, R. B., Leon Dewilde, R., Simplified approach to the treatment of endometriosis - ECO system, Minerva Ginecologica, 64, 331–335, 2012It has focused on development of a classification system while the effectiveness of the system has not been evaluated
Bauer, E., Widschwendter, P., Stuck, D., Gundelach, T., Wulff, C., Janni, W., Hancke, K., Endometriosis Health Profile scores and their association with surgical diagnosis in premenopausal women, Journal of Endometriosis, 5, S31-S32, 2013The effectiveness of using staging systems to guide treatment has not been assessed
Beecham, C. T., Classification of endometriosis, Obstetrics & Gynecology, 28, 437, 1966Editorial/letter
Borase, H., Hillman-Cooper, C., Khan, A., Reddy, K., Endometriosis infertility index (EFI) - A retrospective analysis of the use of this new tool in the management of infertile women with endometriosis, Human Fertility, 14, 23–24, 2011The clinical and cost-effectiveness of using staging system has not been evaluated.
Boujenah, J., Bonneau, C., Hugues, J. N., Sifer, C., Poncelet, C., External validation of the Endometriosis Fertility Index in a French population, Fertility & Sterility, 104, 119–123.e1, 2015The effectiveness of using staging system to guide the treatment has not been addressed
Boujenah, J., Hugues, J. N., Sifer, C., Bricou, A., Cedrin-Durnerin, I., Sonigo, C., Monforte, M., Poncelet, C., Endometriosis Fertility Index, or classification of the American Society of Reproductive Medicine for postoperative endometriosis patients with infertility: Which is more relevant?, Gynecologie Obstetrique Fertilite, 43, 806–809, 2015Foreign Language Paper. It is unclear from the abstract whether this paper reports on a primary study.
Buttram Jr, V. C., Classification of endometriosis, Contributions to Gynecology and Obstetrics, 16, 73–83, 1987Narrative review
Candiani, G. B., Vercellini, P., Fedele, L., Clinical staging and therapeutic choices in endometriosis, New Trends in Gynaecology and Obstetrics, 2, 379–386, 1986Narrative review
Chapron, C., Fauconnier, A., Dubuisson, J.B., Barakat, H., Vieira, M., Breart, G., Deep infiltrating endometriosis: relation between severity of dysmenorrhoea and extent of disease, Human Reproduction, 18, 760–766, 2003There is no comparison group and the effectiveness of using staging system has not been assessed
Choi, B. R., Jeon, Y. E., Kim, H. Y., Seo, S. K., Choi, Y. S., Cho, S., Lee, B. S., Prognostic value of the revised American fertility society classification system and preoperative serum CA-125 level for the first recurrence of advanced endometriosis after conservative laparoscopy, Fertility and sterility, 1), S220, 2012Clinical effectiveness of the staging systems to guide treatment decisions was not assessed
Chopin, N., Vieira, M., Borghese, B., Foulot, H., Dousset, B., Coste, J., Mignon, A., Fauconnier, A., Chapron, C., Operative management of deeply infiltrating endometriosis: results on pelvic pain symptoms according to a surgical classification, Journal of Minimally Invasive Gynecology, 12, 106–12, 2005Clinical effectiveness of the staging systems has not been assessed
Coccia, M. E., Rizzello, F., Palagiano, A., Scarselli, G., Long-term follow-up after laparoscopic treatment for endometriosis: multivariate analysis of predictive factors for recurrence of endometriotic lesions and pain, European Journal of Obstetrics, Gynecology, & Reproductive Biology, 157, 78–83, 2011The intervention has not used staging system. There is no comparison group and no outcome of interest.
Di Paola, V., Manfredi, R., Castelli, F., Negrelli, R., Mehrabi, S., Pozzi Mucelli, R., Detection and localization of deep endometriosis by means of MRI and correlation with the ENZIAN score, European Journal of Radiology, 84, 568–74, 2015The clinical and cost-effectiveness of using staging systems has not been evaluated
Dmowski, W. P., Visual assessment of peritoneal implants for staging endometriosis: do number and cumulative size of lesions reflect the severity of a systemic disease?, Fertility & Sterility, 47, 382–4, 1987Narrative review
Elsheikh, A., Milingos, S., Loutradis, D., Kallipolitis, G., Michalas, S., Endometriosis and reproductive disorders, Annals of the New York Academy of Sciences, 997, 247–54, 2003It is focused on the relationship between severity of endometriosis and pregnancy rate after surgery. It has not used the staging system to guide treatment.
Emilio, P., Control of pelvic pain and quality of life following treatment of symptomatic endometriosis, Journal of Psychosomatic Obstetrics and Gynecology, 31, 21, 2010Not looking at staging systems to guide treatment decisions
Fasciani, A., Repetti, F., Binda, G. A., Puntoni, M., Meroni, M. G., Bocci, G., Endometriosis Index: A software-derived score to predict the presence and severity of the disease, Journal of Endometriosis, 2, 79–86, 2010Data on surgical outcomes not provided.
Fedele, L., Parazzini, F., Bianchi, S., Arcaini, L., Candiani, G. B., Stage and localization of pelvic endometriosis and pain, Fertility & Sterility, 53, 155–8, 1990Clinical effectiveness of the staging systems has not been assessed
Gillett, W. R., Lamont, J. M., Peek, J. C., Herbison, G. P., Effect of severity of endometriosis on prioritisation for infertility treatment in New Zealand, Human Reproduction, 28, i245-i246, 2013The study has addressed the severity of endometriosis and pregnancy rate. It has not evaluated the effectiveness of classification systems.
Guzick, D. S., Bross, D. S., Rock, J. A., Assessing the efficacy of The American Fertility Society’s classification of endometriosis: application of a dose-response methodology, Fertility & Sterility, 38, 171–6, 1982The effectiveness of using staging systems has not been assessed
Haas, D., Chvatal, R., Habelsberger, A., Wurm, P., Schimetta, W., Oppelt, P., Comparison of revised American Fertility Society and ENZIAN staging: a critical evaluation of classifications of endometriosis on the basis of our patient population, Fertility & Sterility, 95, 1574–8, 2011The effectiveness of the staging systems has not been addressed
Haas, D., Chvatal, R., Wurm, P., Habelsberger, A., Oppelt, P., Endometriosis between AFS and ENZIAN: A critical assessment of classification systems for endometriosis staging in an own patient group, Archives of gynecology and obstetrics, 282, S175, 2010The effectiveness of using staging systems to guide treatment has not been assessed
Haas, D., Oppelt, P., Shebl, O., Shamiyeh, A., Schimetta, W., Mayer, R., Enzian classification: does it correlate with clinical symptoms and the rASRM score?, Acta Obstetricia et Gynecologica Scandinavica, 92, 562–6, 2013There is no comparison group. The intervention has not used staging system to guide treatment
Haas, D., Oppelt, P., Shebl, O., Shamiyeha, A., Schimetta, W., Mayer, R., Enzian classification: Does it correlate with clinical symptoms and the rASRM score?, Journal of Endometriosis, 5, S39, 2013The effectiveness of using staging systems to guide treatment has not been assessed
Haas, D., Wurm, P., Shamiyeh, A., Shebl, O., Chvatal, R., Oppelt, P., Efficacy of the revised Enzian classification: a retrospective analysis. Does the revised Enzian classification solve the problem of duplicate classification in rASRM and Enzian?, Archives of Gynecology & Obstetrics, 287, 941–5, 2013The effectiveness of using staging system to guide treatment has not been assessed
Hackethal, A., Luck, C., Konrad, L., Muenstedt, K., Tinneberg, H. R., Oehmke, F., Deep infiltrating endometriosis is frequent in all stages of endometriosis and the depth of infiltration influences surgical parameters proportionally, Journal of Endometriosis, 2, 205–212, 2010No information about outcomes after surgery.
Hancke, K., Friedl, T., Widschwendter, P., Stuck, D., Gundelach, T., Janni, W., Bauer, E., Endometriosis health profile (EHP-30) scores and their association with surgical diagnosis in premenopausal women, Human Reproduction, 29, i208-i209, 2014Not using staging systems to guide treatment decisions
Hassa, H., What is the problem with the current classification system and how can we improve it?, Journal of Endometriosis, 4 (3), 131–132, 2012Literature review of different staging systems
Hoshiai, H., Ishikawa, M., Sawatari, Y., Noda, K., Fukaya, T., Laparoscopic evaluation of the onset and progression of endometriosis, American Journal of Obstetrics and Gynecology, 169, 714–719, 1993The effectiveness of the staging systems has not been assessed
Jayakrishnan, N., Predicting the reproductive outcome in endometriosis-a comparison between EFI and AFS scores, Human Reproduction, 30, i54, 2015Study does not use staging systems to guide treatment decisions
Kistner, R. W., Siegler, A. M., Behrman, S. J., Suggested classification for endometriosis: relationship to infertility, Fertility & Sterility, 28, 1008–10, 1977Narrative review
Li, X., Tang, H., The value of endometriosis fertility index in predicting the pregnancy outcome after laparoscopy for minimal or mild endometriosis associated infertility, International Journal of Gynecology and Obstetrics, 131, E293, 2015Correlation of stages within a single classification to an outcome. Not used to guide treatment decisions
Malinak, L. R., Infertility and endometriosis operative technique, clinical staging, and prognosis, Clinical Obstetrics & Gynecology, 23, 925–35, 1980The effectiveness of using staging systems has not been assessed
Momoeda, M., Taketani, Y., Terakawa, N., Hoshiai, H., Tanaka, K., Tsutsumi, O., Osuga, Y., Maruyama, M., Harada, T., Obata, K., Hayashi, K., Is endometriosis really associated with pain?, Gynecologic & Obstetric Investigation, 54 Suppl 1, 18–21; discussion 21–3, 2002The effectiveness of using staging systems has not been addressed
Muse, K., Clinical manifestations and classification of endometriosis, Clinical Obstetrics & Gynecology, 31, 813–22, 1988It is a narrative review article explaining the clinical presentations of endometriosis and classification system
Nezhat, C., Nezhat, F., Nezhat, C., Seidman, D. S., Classification of endometriosis. Improving the classification of endometriotic ovarian cysts, Human Reproduction, 9, 2212–3, 1994It is a debate about classification of endometriosis not a study evaluating the effectiveness of using staging systems
Palmisano, G. P., Adamson, G. D., Lamb, E. J., Can staging systems for endometriosis based on anatomic location and lesion type predict pregnancy rates?, International Journal of Fertility & Menopausal Studies, 38, 241–9, 1993The effectiveness of using endometriosis to guide the treatment has not been evaluated
Pistofidis, G. A., Bardis, N. S., Koukoura, O. G., Balinakos, P. M., Filippidis, M. S., Comparison of the Enzian Scoring system with the American Fertility Society scoring system for the assessment of pelvic pain in women with deep infiltrating endometriosis, Journal of Minimally Invasive Gynecology, 1), S27, 2010Pelvic pain and severity of the disease according to the scoring systems have been evaluated. Effectiveness of the staging systems to guide the treatment has not been assessed.
Pop-Trajkovic, S., Popovic, J., Antic, V., Radovic, D., Stefanovic, M., Vukomanovic, P., Stages of endometriosis: does it affect in vitro fertilization outcome.[Erratum appears in Taiwan J Obstet Gynecol. 2015 Dec;54(6):806 Note: Stavanovic, Milan [Corrected to Stefanovic, Milan]], Taiwanese Journal of Obstetrics & Gynecology, 53, 224–6, 2014Does not compare staging classification systems. Only looks at treatment outcomes for one system.
Porpora, M.G., Koninckx, P.R., Piazze, J., Natili, M., Colagrande, S., Cosmi, E.V., Correlation between endometriosis and pelvic pain, Journal of the American Association of Gynecologic Laparoscopists, 6, 429–434, 1999The effectiveness of the staging systems has not been assessed
Renner, S., Rix, S., Lermann, J., Thiel, F., Oppelt, P., Beckmann, M. W., Fasching, P., Pain as risk factor for recurrence in patients with endometriosis, Gynecological Surgery, 8, S38, 2011It has addressed pain as a risk factor for recurrence. The effectiveness of the staging systems has not been assessed.
Sun, A., Han, M., A proposed clinical classification of pelvic endometriosis, Proceedings of the Chinese Academy of Medical Sciences & the Peking Union Medical College, 5, 163–7, 1990The effectiveness of using staging system has not been assessed
Szendei, G., Hernadi, Z., Devenyi, N., Csapo, Z., Is there any correlation between stages of endometriosis and severity of chronic pelvic pain? Possibilities of treatment, Gynecological Endocrinology, 21, 93–100, 2005The relationship between pain and the severity of endometriosis has been assessed. The effectiveness of using staging system has not been addressed.
Tomassetti, C., Geysenbergh, B., Meuleman, C., Fieuws, S., D’Hooghe, T., External validation of the EFI (Endometriosis Fertility Index) staging system for predicting non-ART pregnancy after endometriosis surgery, Human Reproduction, 27, 2012The effectiveness of using staging system has not been assessed
Vercellini, P., Fedele, L., Aimi, G., De Giorgi, O., Consonni, D., Crosignani, P. G., Reproductive performance, pain recurrence and disease relapse after conservative surgical treatment for endometriosis: the predictive value of the current classification system, Human Reproduction, 21, 2679–85, 2006The research question is focused on association of the classification system and clinical outcomes after the surgery not the effectiveness of using staging systems
Vercellini, P., Fedele, L., Aimi, G., Pietropaolo, G., Consonni, D., Crosignani, P. G., Association between endometriosis stage, lesion type, patient characteristics and severity of pelvic pain symptoms: a multivariate analysis of over 1000 patients, Human Reproduction, 22, 266–71, 2007The effectiveness of using staging system has not been assessed
Vercellini, P., Trespidi, L., De Giorgi, O., Cortesi, I., Parazzini, F., Crosignani, P. G., Endometriosis and pelvic pain: relation to disease stage and localization, Fertility & Sterility, 65, 299–304, 1996It has focused on relation between stages of endometriosis and Pelvic pain not using staging system to guide the treatment
Wang, W., Li, R., Fang, T., Huang, L., Ouyang, N., Wang, L., Zhang, Q., Yang, D., Endometriosis fertility index score maybe more accurate for predicting the outcomes of in vitro fertilisation than r-AFS classification in women with endometriosis, Reproductive Biology & Endocrinology, 11, 112, 2013The effectiveness of staging system has not been evaluated. The study has addressed the predictive value of the staging system in IVF outcome after surgery.
Yun, B. H., Jeon, Y. E., Chon, S. J., Park, J. H., Seo, S. K., Cho, S., Choi, Y. S., Lee, J. S., Lee, B. S., The prognostic value of individual adhesion scores from the revised American fertility society classification system for recurrent endometriosis, Yonsei medical journal, 56, 1079–1086, 2015The study has not evaluated the effectiveness of using staging systems
Zeng, C., Xu, J. N., Zhou, Y., Zhou, Y. F., Zhu, S. N., Xue, Q., Reproductive performance after surgery for endometriosis: predictive value of the revised American Fertility Society classification and the endometriosis fertility index, Gynecologic & Obstetric Investigation, 77, 180–5, 2014It has addressed the predictive value of staging system for pregnancy rate. The effectiveness of using staging systems has not been evaluated.
Zhang, X., Liu, C., Fu, J., Feng, X., Huang, W., Li, X., Predictive value of endometriosis fertility index (EFI) for natural pregnancy rate after laparoscopy treatment in Chinese women with endometriosis associated infertility, International Journal of Gynecology and Obstetrics, 131, E229, 2015The effectiveness of using staging systems to guide the treatment has not been assessed

From: Appendix H, Excluded studies

Cover of Endometriosis: diagnosis and management
Endometriosis: diagnosis and management.
NICE Guideline, No. 73.
National Guideline Alliance (UK).
© NICE 2017.

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