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Table 1 Baseline characteristics of BC group versus non-BC group

From: Weight-adjusted-waist index: an innovative indicator of breast cancer hazard

Characteristic

Overall, N = 10,193

BC

P value

Yes, N = 259

No, N = 9,934

Age

   

< 0.0011

     < 70

8,671 (85.07%)

153 (59.07%)

8,518 (85.75%)

 

     ≥ 70

1,522 (14.93%)

106 (40.93%)

1,416 (14.25%)

 

Race

   

0.0031

     Mexican American

1,392 (13.66%)

30 (11.58%)

1,362 (13.71%)

 

     Non-Hispanic White

3,693 (36.23%)

122 (47.10%)

3,571 (35.95%)

 

     Non-Hispanic Black

2,321 (22.77%)

50 (19.31%)

2,271 (22.86%)

 

     Other Race

2,787 (27.34%)

57 (22.01%)

2,730 (27.48%)

 

Educational level

   

0.3621

     Below high school

2,093 (20.53%)

47 (18.15%)

2,046 (20.60%)

 

     High school level or equivalent

2,140 (20.99%)

52 (20.08%)

2,088 (21.02%)

 

     Some college or AA degree

3,397 (33.33%)

83 (32.05%)

3,314 (33.36%)

 

     Above college

2,563 (25.14%)

77 (29.73%)

2,486 (25.03%)

 

Marital status

   

0.9601

     Yes

4,707 (46.18%)

120 (46.33%)

4,587 (46.17%)

 

     No

5,486 (53.82%)

139 (53.67%)

5,347 (53.83%)

 

PIR

2.02 (1.10, 3.72)

2.51 (1.47, 4.28)

2.01 (1.10, 3.70)

< 0.0012

TC (mg/dL)

190 (166, 216)

198 (176, 217)

190 (166, 216)

0.0222

Alcohol consumption

   

0.0621

     Yes

5,070 (49.74%)

114 (44.02%)

4,956 (49.89%)

 

     No

5,123 (50.26%)

145 (55.98%)

4,978 (50.11%)

 

Smoking status

   

0.1961

     Yes

3,359 (32.95%)

95 (36.68%)

3,264 (32.86%)

 

     No

6,834 (67.05%)

164 (63.32%)

6,670 (67.14%)

 

Hypertension

   

< 0.0011

     Yes

4,306 (42.24%)

164 (63.32%)

4,142 (41.70%)

 

     No

5,887 (57.76%)

95 (36.68%)

5,792 (58.30%)

 

Diabetes mellitus

   

< 0.0011

     Yes

1,692 (16.60%)

75 (28.96%)

1,617 (16.28%)

 

     No

8,501 (83.40%)

184 (71.04%)

8,317 (83.72%)

 

Coronary heart disease

   

0.0281

     Yes

257 (2.52%)

12 (4.63%)

245 (2.47%)

 

     No

9,936 (97.48%)

247 (95.37%)

9,689 (97.53%)

 

Physical activity

   

0.0211

     Vigorous

1,302 (12.77%)

20 (7.72%)

1,282 (12.91%)

 

     Moderate

2,278 (22.35%)

53 (20.46%)

2,225 (22.40%)

 

     No

6,613 (64.88%)

186 (71.81%)

6,427 (64.70%)

 

BMI (kg/m2)

28.5 (24.1, 33.8)

28.6 (24.8, 33.8)

28.5 (24.0, 33.8)

0.4842

WC (cm)

96.5 (85.4, 108.3)

99.4 (89.7, 109.1)

96.4 (85.4, 108.3)

0.0092

WHtR

0.45 (0.38, 0.54)

0.46 (0.40, 0.53)

0.45 (0.38, 0.54)

0.6952

WWI (cm/√kg)

11.28 (10.69, 11.87)

11.61 (11.09, 12.17)

11.27 (10.68, 11.86)

< 0.0012

  1. Median (IQR) for continuous variables; percentages for categorical variables
  2. 1Pearson’s Chi-squared test
  3. 2Wilcoxon rank sum test
  4. PIR poverty-to-income ratio, TC total cholesterol, BC breast cancer, BMI body mass index, WC waist circumference, WHtR waist-height ratio, WWI weight-adjusted-waist index