Types of contraception		Effectiveness as commonly used (%)
Permanent sterilization (male and female)		> 99
Intrauterine device (copper and levonorgestrel)		> 99
Hormonal implants		> 99
Progestin-only injectables		97
Combined oral contraceptives		92
Patch		91
Intravaginal ring		91
Progestin-only pills		90 to 97
Diaphragm		88
Male condoms		85
Female condoms		79
Sponge		76 to 88
Fertility awareness–based methods		76
Withdrawal method		73
Spermicides		72
No method		15
Emergency contraception
	Copper intrauterine device	> 99
	Ulipristal (Ella)	> 85
	Combined (Yuzpe method)	56 to 86
	Levonorgestrel	52 to 85