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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Am J Obstet Gynecol. 2021 Apr 21;225(3):285.e1–285.e7. doi: 10.1016/j.ajog.2021.04.235

Table 1.

Maternal demographic and clinical characteristics by embryo biopsy status

Characteristic Category Total %
(N=2776)
Biopsy %
(N=585)
No Biopsy %
(N=2191)
P-value

Maternal age (years) <30 10.5 5.5 11.8 <0.0001
31-34 32.3 21.7 35.1
35-37 31.4 28.9 32.1
38-40 18.1 28 15.4
41-42 5.3 10.3 4
43+ 2.4 5.6 1.6

Race/Ethnicity Hispanic 5.3 3.4 5.8 0.0027
Non-Hispanic White 78.2 79.5 77.9
Non-Hispanic Black 3.5 1.6 4
Non-Hispanic Asian 12.5 14.9 11.8
Other Non-Hispanic 0.4 0.5 0.4

Education <HS or HS 3.5 2.5 3.8 <0.0001
Some College 12.4 5.7 14.2
College + 84.1 91.8 82.1

Parity 1 51 59.6 48.7 <0.0001
2 40.1 30.4 42.7
3+ 8.9 10 8.6

Year of birth 2014 2.8 0.3 3.4 <0.0001
2015 21.3 5.1 25.7
2016 32 33.8 31.4
2017 43.9 60.7 39.5

Insurance at delivery Private 85.9 82.7 86.6 0.0002
Public 7.1 6.2 7.4
Self-pay 6.8 10.8 5.8
Missing 0.2 0.3 0.1

BMI (kg/m2) <18.5 2.9 2.8 2.9 0.1391
18.5-24.9 57.7 59.2 57.3
25.0-29.9 22.1 24.2 21.5
30.0-34.9 10.2 9 10.5
35.0-39.9 4.6 3.2 5
40.0-44.9 2.5 1.6 2.8

Chronic No 97.4 98.5 97.1 0.0634
hypertension (%) Yes 2.6 1.5 2.9

Pregestational No 99.3 99.1 99.3 0.6656
Diabetes (%) Yes 0.7 0.9 0.7

Infertility Diagnosis (%)

●Male factor No 66.2 75.6 63.7 <0.0001
Yes 33.8 24.4 36.3

●Endometriosis No 94.2 97.4 93.3 0.0002
Yes 5.8 2.6 6.7

●PCOS No 83.8 86.8 82.9 0.0228
Yes 16.2 13.2 17.1

●Ovulation No 83.2 75.9 85.1 <0.0001

Disorder Yes 16.8 24.1 14.9

●Diminished No 90 85.5 91.2 <0.0001
Ovarian Reserve Yes 10 14.5 8.8

●Uterine factor No 97.7 97.7 97.7 0.9687
Yes 2.9 2.9 2.9

●Tubal factor No 90.2 93.5 89.3 0.0025
Yes 9.8 6.5 10.7

●Other No 76.5 18.1 92.1 <0.0001
Yes 23.5 81.9 7.9

●Unexplained No 75.5 93.3 70.7 <0.0001
Yes 24.5 6.7 29.3

●Multiple diagnoses No 69.9 52.8 74.4 <0.0001
Yes 30.1 47.2 25.6