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. 2019 Nov 14;9(1):385–393. doi: 10.1002/cam4.2707

Figure 1.

Figure 1

The restricted cubic splines of maternal age‐related factors with breast cancer progression‐free survival, hazard ratio adjusted for age at diagnosis; Gray represents the 95% confidence interval: (A) age at first birth, (B) intervals between first birth and diagnosis, (C) intervals between last birth and diagnosis, and (D) intervals between first and second birth