Percent pregnancy loss by maternal age at conception

Maternal age	Spontaneous abortions (percentage)	Ectopic pregnancies (percentage)	Stillbirths rate/1000
12-19	13.3	2.0	5.0
20-24	11.1	1.5	4.2
25-29	11.9	1.6	4.0
30-34	15.0	2.8	4.4
35-39	24.6	4.0	5.0
40-44	51.0	5.8	6.7
≥45	93.4	7.0	8.2

Adapted from: Anderson et al. Figures 2,4,5. The total spontaneous abortion rate is estimated using the assumption that only 80 percent of women with abortions in recognized pregnancies were hospitalized. Adapted from: Anderson FWJ, Johnson TRB. Maternal mortality at Y2K. Postgraduate Obstetrics and Gynecology 2000; 20:1.

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