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. Author manuscript; available in PMC: 2020 Oct 13.
Published in final edited form as: Obstet Gynecol. 2016 Oct;128(4):761–770. doi: 10.1097/AOG.0000000000001647

Fig. 2.

Fig. 2.

Temporal trend in frequency of ovarian conservation. A. Frequency of ovarian conservation by age at hysterectomy is shown for all cases (N=86,005). Between age 37 and 53 years, there was a statistically significant decline in the frequency of ovarian conservation with each subsequent year of age (percent change per year −10.6, 95% confidence interval [CI] −11.7 to −9.4, P<.001). B. Frequency of ovarian conservation at hysterectomy by calendar year is shown for women aged younger than 50 years with stage I grade 1 endometrioid endometrial cancer (n=9,110). Median frequency of ovarian conservation during the study period was 10.6%. There was a statistically significant increase in frequency of ovarian conservation between 1993 and 2012 (percent change per year 1.1, 95% CI 0.4–1.8, P=.003). Error bars represent 95% CI.

Matsuo. Ovarian Conservation in Endometrial Cancer. Obstet Gynecol 2016.