Volume 10 — November 14, 2013
Obesity, Mortality, and Life Years Lost Associated With Breast Cancer in Nonsmoking US Women, National Health Interview Survey, 1997–2000
Data selection began with the 124,641 adult men and women who participated in the NHIS 1997–2000 survey. The 53,990 men in the study were excluded because the study focused on women. This step left 70,651 women. After excluding the 3,304 women with missing data, 67,347 women remained. A total of 27,453 smokers (women who had smoked more than 100 cigarettes in their lifetime) were then excluded, leaving 39,894 women. The next exclusion was 1,103 women who were pregnant, leaving 38,791 women. Women who reported having had any cancer except breast cancer (1,797) were then excluded, leaving 36,994 nonsmoking and nonpregnant women without any cancer other than breast cancer. The next exclusion was of 1,141 underweight women. The remainder was 35,853 nonsmoking nonpregnant women of normal or higher weight with breast cancer or without any cancer.
Figure. Data attrition diagram, study on obesity, mortality, and life years lost associated with breast cancer in nonsmoking US women, National Health Interview Survey (NHIS), 1997–2000.
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