Table 2.

Total Pregnancy Outcomes for Index and Subsequent Pregnancies, Number and Percent of Pregnancies 2 to 5, and the Index Outcome Cohort.

Index pregnancy live birth	Live birth	% of Known	Natural loss	% of Known	Induced abortion	% of known	Undetermined	Total	% of Cohort (Table 1)
2nd Pregnancy	986 834	79.1%	131 302	10.5%	129 168	10.4%	99 587	1 346 891	35.4%
3rd Pregnancy	339 676	72.0%	62 704	13.3%	69 423	14.7%	45 936	517 739	13.6%
4th Pregnancy	126 645	66.2%	27 470	14.4%	37 086	19.4%	20 241	211 442	5.6%
5th Pregnancy	50 294	60.9%	12 279	14.9%	20 069	24.3%	9241	91 883	2.4%
Total	1 503 449	75.4%	233 755	11.7%	255 746	12.8%	175 005	2 167 955	56.9%
Index pregnancy natural loss	Live birth	% of Known	Natural loss	% of Known	Induced abortion	% of Known	Undetermined	Total	% of cohort (Table 1)
2nd Pregnancy	120 189	62.7%	60 305	31.5%	11 220	5.9%	25 670	217 384	48.4%
3rd Pregnancy	51 326	62.4%	22 020	26.8%	8921	10.8%	10 881	93 148	20.7%
4th Pregnancy	20 710	58.3%	9570	27.0%	5219	14.7%	4731	40 230	9.0%
5th Pregnancy	8515	53.1%	4540	28.3%	2978	18.6%	2122	18 155	4.0%
Total	200 740	61.7%	96 435	29.6%	28 338	8.7%	43 404	368 917	82.1%
Index pregnancy induced abortion	Live birth	% of Known	Natural loss	% Known	Induced abortion	% of Known	Undetermined	Total	% of Cohort (Table 1)
2nd Pregnancy	71 764	36.6%	17 105	8.7%	107 044	54.6%	15 270	211 183	50.2%
3rd Pregnancy	36 169	34.5%	10 202	9.7%	58 503	55.8%	9 261	114 135	27.1%
4th Pregnancy	18 015	30.8%	5742	9.8%	34 662	59.3%	5416	63 835	15.2%
5th Pregnancy	9238	27.8%	3352	10.1%	20 696	62.2%	3375	36 661	8.7%
Total	135 186	34.4%	36 401	9.3%	220 905	56.3%	33 322	425 814	100.1%
Subsequent pregnancy totals	1 839 375	67.8%	366 591	13.5%	504 989	18.6%	251 731	2 962 686	59.7%