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Table 4 Other risk factors by study groupa

From: Risk factors for breast cancer in postmenopausal Caucasian and Chinese-Canadian women

 

Adjusted Mean (Lower and Upper 95% Confidence Limits) (% Yes)

    
    

P

 

Caucasians

Chinese born in the West or migrated to the West before 21

Recent Chinese migrants

P b

P c

P d

P e

 

(N = 413)

(N = 216)

(N = 421)

    

First degree relatives with breast cancerf

16.0 (12.0, 21.1)

14.7 (10.0, 21.0)

7.8 (5.5, 11.0)

0.87

0.99

0.003

0.04

Any benign breast biopsy

14.8 (11.5, 18.9)

8.7 (5.5, 8.2)

5.4 (3.5, 8.2)

0.04

0.10

<0.001

0.39

Consumption of alcohol at least once per week for six months or longer

60.6 (53.5, 67.2)

9.4 (6.0, 14.4)

2.3 (1.2, 4.2)

<0.001

<0.001

<0.001

<0.001

Consumption of alcohol at least once per week currently

50.9 (45.7, 56.0)

8.7 (5.6, 13.4)

1.4 (0.6, 3.3)

<0.001

<0.001

<0.001

<0.001

Smoked at least one cigarette per day for three months or longer

46.5 (39.1, 54.1)

12.4 (8.2, 18.2)

1.7 (0.8, 3.6)

<0.001

<0.001

<0.001

<0.001

Smoking at least one cigarette per day

11.0 (8.2, 14.6)

3.3 (1.5, 6.7)

0.5 (0.1, 1.9)

0.01

0.006

<0.001

0.05

Currently

       

Any X-ray examinations that included the chest areag

73.7 (67.4, 79.1)

78.5 (71.1, 84.4)

97.4 (95.3, 98.5)

0.20

0.69

<0.001

<0.001

Any X-ray examination for tuberculosisg

58.3 (51.6, 64.7)

71.9 (64.3, 78.4)

96.4 (94.2, 97.9)

0.09

0.008

<0.001

<0.001

  1. a P values were based on logistic regression, adjusting for age, education, and age × ethnicity. Pairwise comparisons were adjusted for multiple comparisons using the Bonferroni method. Variables are expressed as adjusted means.
  2. b P values for ethnicity effect
  3. c P values for comparing Caucasians and Chinese born in the West or migrated to the West before age 21
  4. d P values for comparing Caucasians and recent Chinese migrants
  5. e P values for comparing Chinese born in the West or migrated to the West before age 21 and recent Chinese migrants
  6. f There were 22 missing values for Caucasians, 21 for Chinese born in the West or migrated to the West before age 21, and 38 for recent Chinese migrants.
  7. g There were seven missing values for Caucasians and six for Chinese born in the West or migrated to the West before age 21.