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. 2013 Apr;22(4):368–377. doi: 10.1089/jwh.2012.4191

Table 1.

Baseline Characteristics for Women Diagnosed with a First New Primary Breast Cancer, New Mexico Women's Health Study, 1992–1994

 
 BMI category at interview
  
 
 Hispanic (N=279)
 Non-Hispanic white (N=298)
  
Characteristics ≤24.9 N=105 25–29.9 N=97 ≥30 N=77 p valuea ≤24.9 N=166 25–29.9 N=85 ≥30 N=47 p valuea p valueb
  N % N % N %   N % N % N %    
BMI, age 18 (kg/m2)
 <18.5 26 26.0 17 18.1 7 9.2 <0.01 42 25.3 16 19.3 5 10.6 <0.01 0.28
 18.5–24.9 74 74.0 74 78.7 55 72.4   120 72.3 64 77.1 38 80.9    
 25–29.9 0 0 3 3.2 12 15.8   3 1.8 2 2.4 1 2.1    
 ≥30 0 0 0 0 2 2.6   1 0.6 1 1.2 3 6.4    
Education (years)
 <12 45 43.3 35 36.1 33 42.9 0.28 36 21.8 26 30.6 17 36.2 0.06 <0.01
 12 26 25.0 32 33.0 28 36.4   12 7.3 2 2.4 3 6.4    
 >12 33 31.7 30 30.9 16 20.8   117 70.9 57 67.1 27 57.5    
Parity
 Nulliparous 17 16.2 6 6.2 10 13.0 0.02 37 23.3 6 7.1 4 8.5 <0.01 <0.01
 1 16 15.2 2 2.1 5 6.5   33 19.9 12 14.1 5 10.6    
 2 23 21.9 16 16.5 15 19.5   48 28.9 29 34.1 19 40.4    
 3 19 18.1 35 36.1 15 19.5   31 18.7 14 16.5 8 17.0    
 ≥4 30 28.6 38 39.2 32 41.6   17 10.2 24 28.2 11 23.4    
Family history
 Yes 11 10.5 10 10.3 11 14.3 0.45 21 12.7 15 17.7 6 12.8 0.69 0.35
 No 94 89.5 87 89.7 66 85.7   145 87.4 70 82.4 41 87.2    
History of diabetes
 Yes 8 7.6 11 11.3 21 27.3 <0.01 2 1.2 4 4.7 5 10.6 <0.01 <0.01
 No 97 92.4 86 88.7 56 72.7   164 98.8 81 95.3 42 89.4    
History of high cholesterol
 Yes 25 23.8 20 20.6 20 26.0 0.79 34 20.5 34 40.0 14 29.8 0.03 0.25
 No 80 76.2 77 79.4 57 74.0   132 79.5 51 60.0 33 70.2    
History of high blood pressure
 Yes 22 21.0 30 30.9 32 41.6 <0.01 40 24.1 31 36.5 23 48.9 <0.01 0.71
 No 83 79.1 67 69.1 45 58.4   126 75.9 54 63.5 24 51.1    
History of stroke
 Yes 3 2.9 3 3.1 0 0 0.22 1 0.6 1 1.2 2 4.3 0.08 0.45
 No 102 97.1 94 96.9 77 100   165 99.4 84 98.8 45 95.7    
History of heart disease
 Yes 4 3.8 2 2.1 3 3.9 0.97 9 5.4 5 5.9 3 6.4 0.79 0.15
 No 101 69.2 95 97.9 74 96.1   157 94.6 80 94.1 44 93.6    
Estrogen receptor status
 ER+ 64 64.7 54 60.7 49 71.0 0.46 104 69.8 58 77.3 27 69.2 0.70 0.09
 ER− 35 35.4 35 39.3 20 29.0   45 30.2 17 22.7 12 30.8    
Stage of breast cancer
 Local 61 58.1 58 59.8 42 54.6 0.86 110 66.3 56 65.9 30 63.8 0.50 0.05
 Regional 39 37.1 37 38.1 34 44.2   54 32.5 27 31.8 13 27.7    
 Distant 5 4.8 2 2.1 1 1.3   2 1.2 2 2.4 4 8.5    
Menopausal status
 Premenopausal 52 49.5 36 37.5 26 34.2 0.03 57 34.3 17 20.0 13 27.7 0.25 0.01
 Postmenopausal 49 46.7 53 55.2 45 59.2   97 58.4 64 75.3 31 66.0    
 Surgical/unknown 4 3.8 7 7.3 5 6.6   12 7.2 4 4.7 3 6.4    
Breast cancer treatment
 No surgery 1 1.0 1 1.0 0 0 0.84 2 1.2 1 1.8 2 4.3 0.88 0.66
 Surgery only 37 35.2 29 29.9 29 37.7   59 35.5 30 35.3 16 34.0    
 Surgery and radiation 22 21.0 22 22.7 13 16.9   38 22.9 19 22.4 9 19.2    
 Surgery and chemotherapy 16 15.2 23 23.7 15 19.5   26 15.7 14 16.5 13 27.7    
 Surgery, radiation, and chemotherapy 29 27.6 22 22.7 20 26.0   41 24.7 21 24.7 7 14.9    
Smoking history
 Current 9 8.6 23 23.7 10 13.0 0.04 33 19.9 11 12.9 4 8.5 0.19 0.25
 Former 26 24.8 22 22.7 28 36.4   47 28.3 33 38.8 16 34.0    
 Never 70 66.7 52 53.6 39 50.7   86 51.8 41 48.2 27 57.5    
  Mean SD Mean SD Mean SD p valuec Mean SD Mean SD Mean SD p valuec p valued
Age at diagnosis 51.1 12.5 51.8 13.2 52.6 11.1 0.73 53.6 11.1 57.3 8.9 53.7 10.0 0.02 <0.01
Total METS (h/wk) 45.0 36.2 47.3 32.7 42.6 26.8 0.65 49.1 31.7 49.4 35.7 39.8 27.2 0.19 0.36
Calories/day 2271.5 928.1 2488.6 1141.9 2478.2 936.5 0.24 2205.5 877.4 2181.7 759.7 2413.9 890.7 0.27 0.03
Estrogen use (years) 1.4 4.5 2.0 5.1 2.4 5.4 0.40 3.8 6.9 5.4 7.3 3.7 8.0 0.20 <0.01
a

For tests of differences among women with different body mass index (BMI) status within ethnicity, Mantel-Haenszel χ2 p value for categorical values.

b

Ethnic group comparison, regardless of BMI status, Mantel-Haenszel χ2 p value for categorical values.

c

For tests of differences among women with different BMI status, ANOVA for continuous variables.

d

Ethnic group comparison, regardless of BMI status, t-test p value for continuous values.

ER+, estrogen receptor positive; ER−, estrogen receptor negative; METS, metabolic equivalents of tasks.

Missing data: BMI at age 18 (n=11); education (n=2); menopausal status (n=2); estrogen receptor status (n=57); calories/day (n=8); estrogen use (n=5); total METS (n=22). Note: Percentages may not equal 100% due to rounding.