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Presentation Outline ICHP Annual Meeting September 13-15

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• Age<br />

• Calendar year<br />

• Educational level<br />

• Type of contraception<br />

• Duration of use<br />

N Engl J Med. 2012;366(24):2257-2266.<br />

Variables<br />

• Predisposing risk factors<br />

– DM<br />

– HTN<br />

– Hyperlipidemia<br />

– Arrhythmia<br />

– Smoking<br />

Results: Overall Rates of Events<br />

1,626,<strong>15</strong>8 women with 14,251,063 person‐years of observation<br />

Hormonal<br />

Contraception<br />

Status<br />

Thrombotic Stroke Myocardial Infarction<br />

Rates higher in<br />

nonusers due to older Number/<br />

age and more risk person‐years<br />

factors compared to<br />

nonusers<br />

Crude incidence<br />

rates per<br />

100,000 person‐<br />

years<br />

Number/<br />

Person‐years<br />

Users<br />

Nonusers<br />

1051/4.9<br />

million<br />

2260/9.3<br />

million<br />

N Engl J Med. 2012;366(24):2257-2266.<br />

21.4<br />

24.2<br />

497/4.9<br />

million<br />

1228/9.3<br />

million<br />

Crude incidence<br />

rates per p<br />

100,000 person‐<br />

years<br />

10.1<br />

<strong>13</strong>.2<br />

Does type of hormonal contraception affect<br />

rates of MI and stroke (according to this study)?<br />

8/30/2012<br />

<strong>15</strong>

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