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Table 3 Evaluation of embryo morphokinetics by time-lapse imaging

From: Effects of SARS-CoV-2 infection during IVF treatment on embryo morphokinetics and pregnancy outcomes after fresh transfer: a prospective cohort study

 

Both positive

(n = 249)

Female positive

(n = 507)

Male positive

(n = 154)

Both negative

(n = 959)

P-value

tPNa

8.1 ± 3.6

8.1 ± 2.2

7.7 ± 2.1

8.0 ± 2.8

0.068

tPNf

25.2 ± 6.8

25.1 ± 5.4

24.6 ± 5.1

24.7 ± 6.2

0.062

t2

28.0 ± 7.0

27.7 ± 5.7

27.6 ± 6.3

27.3 ± 6.5

0.086

t3

37.7 ± 7.5

37.8 ± 7.9

36.6 ± 6.8

36.8 ± 6.3

0.026

t4

39.7 ± 7.2

39.2 ± 7.2

38.7 ± 6.5

38.8 ± 7.2

0.124

t5

50.3 ± 9.4

48.3 ± 9.8

47.7 ± 9.8

48.3 ± 9.1

0.003

t6

54.9 ± 11.3

52.7 ± 9.2

52.4 ± 10.4

52.6 ± 9.6

0.026

t7

57.9 ± 10.7

56.2 ± 9.9

56.7 ± 11.9

56.0 ± 10.1

0.064

t8

62.3 ± 12.2

60.0 ± 10.7

60.4 ± 13.1

60.2 ± 11.7

0.068

cc2a (t3-t2)

9.9 ± 5.1

10.1 ± 6.7

9.0 ± 4.9

9.7 ± 4.4

0.082

cc2b (t4-t2)

12.1 ± 6.0

11.6 ± 5.6

11.4 ± 4.7

11.8 ± 5.1

0.052

s2 (t4-t3)

2.3 ± 4.7

1.9 ± 4.2

2.3 ± 4.2

2.1 ± 4.1

< 0.001

s3 (t8-t5)

13.1 ± 10.7

12.0 ± 9.2

13.0 ± 11.3

12.4 ± 10.1

0.869

tSC

82.5 ± 7.9

79.9 ± 9.8

79.1 ± 10.2

79.0 ± 9.6

< 0.001

tM

91.3 ± 9.2

88.8 ± 10.6

86.9 ± 10.4

87.5 ± 10.0

< 0.001

tSB

101.6 ± 10.0

98.7 ± 9.4

97.4 ± 9.1

98.0 ± 9.8

< 0.001

tB

111.2 ± 11.1

108.0 ± 10.7

107.1 ± 10.4

107.6 ± 10.9

0.002

tEB

120.5 ± 11.5

117.1 ± 10.4

117.6 ± 10.6

117.2 ± 10.8

0.014

  1. Data are presented as mean ± SD (hours). Abbreviations: tPNa, time to pronuclear appearance; tPNf, time to pronuclear fading; t2, time to two cells; t3, time to three cells; t4, time to four cells; t5, time to five cells; t6, time to six cells; t7, time to seven cells; t8, time to eight cells; tSC, time to start compaction; tM, time to morulation; tSB, time to start blastulation; tB, time to blastocyst; tEB, time to expanding blastocyst