37 Duration of the fertility enhancing effect of HSG with oil-based contrast 2 Appendix: details H2Oil Study Group members Petra Bourdrez, Jan Peter de Bruin, Angelique J.C.M. van Dongen, Annette E.J. Duijn, Anna P. Gijsen, Mariëtte Goddijn, Ron J.T. van Golde, Cathelijne F. van Heteren, Annemieke Hoek, Machiel H.A. van Hooff, Angelo B. Hooker, Mesrure Kaplan, Cornelia H. de Koning, Marieke J. Lambers, Alexander Mozes, Annemiek W. Nap, Marie J. Pelinck, Henrike G.M. Rijnsaardt-Lukassen, Ilse A.J. van Rooij, Alexander V. Sluijmer, Jesper M. J. Smeenk, Catharina C.M. Timmerman, Maaike A.F. Traas, Rachel Tros, Gijsbertus A. van Unnik, Harold R. Verhoeve SUPPLEMENTARY MATERIALS Supplementary Figure 1. Scaled Schoenfeld residuals plot for the basic Cox model using regular time. Log hazard ratio for ongoing pregnancy estimated over three years follow-up of oil-based versus water-based contrast shown by Scaled Schoenfeld residuals plot for the basic Cox model using regular time. Dotted lines represent the 95% confidence interval. Test for non-proportional hazards over time: p=0.10.
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