Table 4.

Weighted number of abortions reported in the survey, external counts of abortions, percentage of external counts reported in the survey, 95% confidence intervals (CI), and unweighted number of abortions reported in the survey, by survey mode and length of recall: NSFG 2006–2015

	Weighted Number of NSFG Abortions	External Counts (adjusted)	% Reported (NSFG / external counts × 100)	95% CI	Unweighted Number of NSFG Abortions
Five-Year Recall FTFa	4,575,254	11,413,954	40	(36–44)	1,180
2006–2010	2,367,494	6,043,097	39	(33–45)	612
2011–2015	2,207,760	5,370,857	41	(35–47)	568
Three-Year Recall FTFa	2,663,486	6,731,802	40	(35–44)	705
Eight-Year Recall FTFa	7,143,890	18,499,516	39	(35–43)	1,787
Five-Year Recall ACASIb	8,272,507	11,413,954	72	(65–80)	1,976

^aFace-to-face interview.

^bAudio computer assisted self-interview.