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. 2022 Jun 29;50:101527. doi: 10.1016/j.eclinm.2022.101527

Table 4.

Time of treatment initiation and pregnancy outcome.

Intention-to-treat population
Fisher's exact test
Time at the start of administration Administration Ongoing pregnancy at 22 weeks of gestation– no./total no. (%) 95% CI p-value Odds ratio (95% CI)
Ongoing pregnancy at 22 weeks of gestation 4 or 5 weeks Placebo 9/36 (25·0) 12·1–42·2 <0·001 6·27 (2·21-17·78)
IVIG 23/34 (67·6) 49·5–82·6
6 weeks Placebo 8/13 (61·5) 31·6–86·1 0·71 0·63 (0·14-2·76)
IVIG 8/16 (50·0) 24·7–75·3
Time at the start of administration Administration Live births– no./total no. (%) 95% CI p-value Odds ratio (95% CI)
Live birth 4 or 5 weeks Placebo 9/36 (25·0) 12·1–42·2 0·003 4·85 (1·74-13·49)
IVIG 21/34 (61·8) 43·6–77·8
6 weeks Placebo 8/13 (61·5) 31·6–86·1 0·71 0·66 (0·141-2·76)
IVIG 8/16 (50·0) 24·7–75·3
Modified intention-to-treat population
Fisher's exact test
Time at the start of administration Administration Ongoing pregnancy at 22 weeks of gestation– no./total no. (%) 95% CI p-value Odds ratio (95% CI)

Ongoing pregnancy at 22 weeks of gestation 4 or 5 weeks Placebo 9/28 (32·1) 15·9–52·4 0·004 5·40 (1·79-16·30)
IVIG 23/32 (71·9) 53·3–86·3
6 weeks Placebo 8/10 (80·0) 44·4–97·5 0·23 0·29 (0·05-1·82)
IVIG 8/15 (53·3) 26·6–78·7
Time at the start of administration Administration Live births– no./total no. (%) 95% CI p-value Odds ratio (95% CI)
Live birth 4 or 5 weeks Placebo 9/28 (32·1) 15·9–52·4 0·02 4·03 (1·37-11·84)
IVIG 21/32 (65·6) 46·8–81·4
6 weeks Placebo 8/10 (80·0) 44·4–97·5 0·23 0·26 (0·04-1·82)
IVIG 8/15 (53·3) 26·6–78·7