Combined Oral Contraceptive Pills (COCs). Advanced Slide Set. Combined Oral Contraceptives Effectiveness. Spermicides. Female condom. Standard Days Method. Male condom. Oral contraceptives. DMPA. IUD (TCu-380A). Pregnancy rate when used correctly and consistently.
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Advanced Slide Set
Standard Days Method
Pregnancy rate when used correctly and consistently
Pregnancy rate as commonly used
Percentage of women pregnant in first year of use
Source: Trussell, 2011.
Protection develops after 12 months of use and is present for at least 15 years
Lifetime risk of acquiring ovarian or endometrial cancer after 8+ years of COC use
Number per 100 women
Non COC users
Non COC users
ChinaProtective Effect of COC Use onOvarian and Endometrial Cancer
Source: Petitti and Porterfield, 1992; CASH Study 1987.
Probability of developing condition X in exposed population
Relative Risk =
Probability of developing condition X in unexposed population
0.1Relative Risk for Breast Cancer among COC users and Non-users
Relative Risk Log Scale
[95% Confidence Interval]
Current COC users
1–4 yrs after stopping
5–9 yrs after stopping
10+ yrs after stopping
Source: Collaborative Group on Hormonal Factors in Breast Cancer, 1996; Milne, 2005; Silvera, 2005 .
Estimates of venous thromboembolism per 100,000 woman-years
Pregnancy presents a higher risk of blood clots than do COCs.
Source: WHO, 1998; Speroff, 2005.
Screening for existing risk factors is important.
Source: Farley, 1998.