1. Predictors of participant retention in infertility treatment trials
Hongying Kuang, M.D., Ph.D., Susan Jin, M.P.H., Tracey Thomas, M.P.H., Lawrence Engmann, M.D., Karl R. Hansen, M.D., Ph.D., Christos Coutifaris, M.D., Ph.D., Peter Casson, M.D., Gregory Christman, M.D., Ruben Alvero, M.D., Nanette Santoro, M.D., Esther Eisenberg, M.D., M.P.H., Michael P. Diamond, M.D., Richard S. Legro, M.D., Heping Zhang, Ph.D. C. Bartlebaugh, W. Dodson, S. Estes, C. Gnatuk, R. Ladda, J. Ober, C. Easton, A. Hernandez, M. Leija, D. Pierce, R. Bryzski, A. Awonuga, L. Cedo, A. Cline, K. Collins, S.A. Krawetz, E. Puscheck, M. Singh, M. Yoscovits, K. Barnhart, K. Lecks, L. Martino, R. Marunich, P. Snyder, W.D. Schlaff, A. Comfort, M. Crow, A. Hohmann, S. Mallette, M. Ringbloom, J. Tang, S. Mason, N. DiMaria, M. Rhea, K. Turner, D.J. Haisenleder, J.C. Trussell, D. DelBasso, Y. Li, R. Makuch, P. Patrizio, L. Sakai, L. Scahill, H. Taylor, T. Thomas, S. Tsang, M. Zhang, C. Lamar, L. DePaolo, D. Guzick, A. Herring, J. Bruce Redmond, M. Thomas, P. Turek, J. Wactawski-Wende, R. Rebar, P. Cato, V. Dukic, V. Lewis, P. Schlegel, F. Witter Hongying Kuang, M.D., Ph.D., Susan Jin, M.P.H., Tracey Thomas, M.P.H., Lawrence Engmann, M.D., Karl R. Hansen, M.D., Ph.D., Christos Coutifaris, M.D., Ph.D., Peter Casson, M.D., Gregory Christman, M.D., Ruben Alvero, M.D., Nanette Santoro, M.D., Esther Eisenberg, M.D., M.P.H., Michael P. Diamond, M.D., Richard S. Legro, M.D., Heping Zhang, Ph.D. C. Bartlebaugh, W. Dodson, S. Estes, C. Gnatuk, R. Ladda, J. Ober, C. Easton, A. Hernandez, M. Leija, D. Pierce, R. Bryzski, A. Awonuga, L. Cedo, A. Cline, K. Collins, S.A. Krawetz, E. Puscheck, M. Singh, M. Yoscovits, K. Barnhart, K. Lecks, L. Martino, R. Marunich, P. Snyder, W.D. Schlaff, A. Comfort, M. Crow, A. Hohmann, S. Mallette, M. Ringbloom, J. Tang, S. Mason, N. DiMaria, M. Rhea, K. Turner, D.J. Haisenleder, J.C. Trussell, D. DelBasso, Y. Li, R. Makuch, P. Patrizio, L. Sakai, L. Scahill, H. Taylor, T. Thomas, S. Tsang, M. Zhang, C. Lamar, L. DePaolo, D. Guzick, A. Herring, J. Bruce Redmond, M. Thomas, P. Turek, J. Wactawski-Wende, R. Rebar, P. Cato, V. Dukic, V. Lewis, P. Schlegel, F. Witter 
Fertility and Sterility 
Volume 104, Issue 5, Pages e2 (November 2015)
DOI: /j.fertnstert
Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Calibration between predicted and observed probabilities of retention. Predicted probabilities were calculated by averaging the probabilities estimated from the logistic model within each decile, whereas the observed probabilities were the proportion of retained participants within each decile. The circles are the 10 points, the solid line is the regression line for the 10 points, and the dashed line is the perfect diagonal line.
Fertility and Sterility  , e2DOI: ( /j.fertnstert )
Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions

3. Supplemental Figure 1
Levels of P values from multivariable linear or logistic model for continuous covariates or binary covariates (columns) based on the type III statistics in the corresponding models. HxTrt = history of prior infertility treatment; LAC = length (months) of attempting conception; WCF = waist circumference; WHR = waist-to-hip ratio.
Fertility and Sterility  , e2DOI: ( /j.fertnstert )
Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions