. 2023 Dec 1;7:e44705. doi: 10.2196/44705

Table 6.

Current contraceptive use in the United States—conventional modality survey (CMS) and app-based samples compared with the 2020 US National Survey of Family Growth (NSFG) 2017 to 2019 [38].

Responses					CMS sample (n=2464), n (%)		App-based sample (n=10,244), n (%)		NSFG (aged 15-49 years, % of sample)
Current contraceptive users					1778 (72.2^a,b)		7748 (75.6^a,b)		Weighted %^c (47^a)
	Hormonal methods (total)			1184 (66.6^c)		3033 (39.1^c,d)		60^c (28.4^a)
		LARC^e methods		421 (23.7^c)		1216 (15.7^c)		26^c (12.4^a)
			IUD^f or IUS^g	192 (10.8^c,d)		827 (10.7^c,d)		18^c (8.4^a)
			Injection	143 (8^c)		43 (0.6^c)		4^c (2^a)
			Implant	86 (4.8^c)		346 (4.5^c)		4^c (2^a)
		Non-LARC methods		763 (42.9^c)		1757 (22.5^c)		34^c (16^a)
			Pill	763 (42.9^b,c)		1586 (20.5^c,d)		30^c (14^a)
			Ring or patch	0 (0)		171 (2.2^c)		4^c (2^a)
	Morning-after pill			24 (1.3^c)		60 (0.8^c)		N/A^h
	Nonhormonal methods (total)			570 (32.1^c)		4147 (53.5^b,c)		29^c (13.8^a)
		Condoms		354 (19.9)^c		1894 (24.4)^c		18^c (8.4^a)
		Natural methods		128 (7.2)^c		1598 (20.6)^b,c		11^c (5.4^a)
		Copper IUD		31 (1.7)^c		655 (8.5)^c		0 (0)
		Other methods		57 (3.2^c,d)		568 (7.3)^c,d		12^c (5.6^a)
Other responses					686 (27.8^a)		2496 (24.4^a)		53^a
	None used in the last 3 months			510 (20.7^a,d)		1688 (16.5)^a,d		34.7^a
	Female sterilization			N/A		N/A		18^a
	No answer or N/A			176 (7.1^a)		808 (7.9^a)		N/A

^aPercentage of survey sample.

^bOverrepresentation compared with benchmark.

^cPercentage of current contraceptive users (samples do not include sterilized respondents).

^dUnderrepresentation compared with benchmark.

^eLARC: long-acting reversible contraception.

^fIUD: intrauterine device.

^gIUS: intrauterine system.

^hN/A: not applicable.