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Table 1.

Characteristics of Hispanic women, by country of birth and case-control status

U.S.-born Hispanics
Foreign-born Hispanics
Cases (n = 502)Controls (n = 427)PCases (n = 489)Controls (n = 858)P
Age (y) 56.3 56.8 0.48 54.4 53.9 0.39 
Education (y) 12.1 12.0 0.75 9.5 7.8 <0.01 
Family history of breast cancer (%) 17.2 14.1 0.19 11.7 5.5 <0.01 
History of benign breast disease (%) 17.7 17.8 0.98 16.4 9.1 <0.01 
Age at menarche 12.3 12.4 0.54 12.7 13.0 <0.01 
No. full-term pregnancies 2.7 3.2 <0.01 3.1 3.9 <0.01 
Age at first full-term pregnancy 23.2 22.5 0.06 24.1 23.1 <0.01 
Lifetime breast-feeding (mo) 6.8 7.7 0.31 18.7 25.6 <0.01 
Premenopausal (%) 35.1 34.2 0.78 40.9 39.2 0.53 
Postmenopausal (%)       
    Natural menopause 36.9 33.7 0.32 38.5 44.2 0.04 
    Surgical menopause* 14.5 17.1 0.29 12.1 8.7 0.05 
    Unknown 13.6 15.0 0.53 8.6 7.9 0.67 
Age at natural menopause (y) 49.4 48.8 0.30 48.4 47.6 0.09 
Postmenopausal hormone therapy use (%) 61.0 66.6 0.16 58.8 48.5 <0.01 
BMI (premenopausal women) 27.1 29.3 <0.01 27.6 29.3 <0.01 
BMI (postmenopausal women) 29.2 30.3 0.03 29.4 29.6 0.57 
Height (cm) 157.9 157.4 0.25 156.0 154.5 <0.01 
Lifetime physical activity (h/wk) 16.9 17.9 0.31 17.0 19.9 <0.01 
Alcohol consumption (g/d) 6.5 3.8 0.03 2.5 1.5 0.02 
Caloric intake (kcal/d) 2154 2082 0.20 2311 2233 0.12 
Fat intake (g/d) 81.0 76.9 0.10 75.0 67.8 <0.01 
Dietary fiber intake (g/d) 21.9 22.0 0.82 28.5 31.2 <0.01 
U.S.-born Hispanics
Foreign-born Hispanics
Cases (n = 502)Controls (n = 427)PCases (n = 489)Controls (n = 858)P
Age (y) 56.3 56.8 0.48 54.4 53.9 0.39 
Education (y) 12.1 12.0 0.75 9.5 7.8 <0.01 
Family history of breast cancer (%) 17.2 14.1 0.19 11.7 5.5 <0.01 
History of benign breast disease (%) 17.7 17.8 0.98 16.4 9.1 <0.01 
Age at menarche 12.3 12.4 0.54 12.7 13.0 <0.01 
No. full-term pregnancies 2.7 3.2 <0.01 3.1 3.9 <0.01 
Age at first full-term pregnancy 23.2 22.5 0.06 24.1 23.1 <0.01 
Lifetime breast-feeding (mo) 6.8 7.7 0.31 18.7 25.6 <0.01 
Premenopausal (%) 35.1 34.2 0.78 40.9 39.2 0.53 
Postmenopausal (%)       
    Natural menopause 36.9 33.7 0.32 38.5 44.2 0.04 
    Surgical menopause* 14.5 17.1 0.29 12.1 8.7 0.05 
    Unknown 13.6 15.0 0.53 8.6 7.9 0.67 
Age at natural menopause (y) 49.4 48.8 0.30 48.4 47.6 0.09 
Postmenopausal hormone therapy use (%) 61.0 66.6 0.16 58.8 48.5 <0.01 
BMI (premenopausal women) 27.1 29.3 <0.01 27.6 29.3 <0.01 
BMI (postmenopausal women) 29.2 30.3 0.03 29.4 29.6 0.57 
Height (cm) 157.9 157.4 0.25 156.0 154.5 <0.01 
Lifetime physical activity (h/wk) 16.9 17.9 0.31 17.0 19.9 <0.01 
Alcohol consumption (g/d) 6.5 3.8 0.03 2.5 1.5 0.02 
Caloric intake (kcal/d) 2154 2082 0.20 2311 2233 0.12 
Fat intake (g/d) 81.0 76.9 0.10 75.0 67.8 <0.01 
Dietary fiber intake (g/d) 21.9 22.0 0.82 28.5 31.2 <0.01 
*

Bilateral oophorectomy (with or without hysterectomy) or hysterectomy with one-sided oophorectomy.

Women ages ≥55 years who either began using hormone therapy before the cessation of menses or had a hysterectomy without oophorectomy.

During the reference year.

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