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Table 2 Selected characteristics of middle-aged South Australian women with (cases) and without (controls) breast cancer diagnosed in the previous 5 years

From: Connecting the dots between breast cancer, obesity and alcohol consumption in middle-aged women: ecological and case control studies

 

Total

Cases (n = 80)

Controls (n = 235)

p-value*

Age last birthday (years)

 Mean

56.4

55.5

56.7

0.128

 SD

6.5

6.5

6.6

 

 Median

57

57

57

0.118

 IQR

51–61

51–61

52–62

 

 [Missing]

[0]

[0]

[0]

 

Born in Australia – n (%) [Missing]

240 (75) [0]

60 (75) [0]

180 (77) [0]

0.772

Health status – n (%)

 Very good

133 (42)

20 (25)

113 (48)

< 0.001 (Cramer’s V = 0.31)

 Good

126 (40)

31 (39)

95 (40)

 Moderate-fair

52 (17)

28 (35)

24 (10)

 Bad

4 (1)

1 (1)

3 (1)

 

 [Missing]

[0]

[0]

[0]

 

Health status binary – n (%)

 Better

259 (82)

51 (64)

208 (89)

< 0.001

 Poorer [Missing]

56 (18) [0]

29 (36) [0]

27 (11) [0]

(OR = 4.38)

BMI at each life period – median (IQR) [Missing]

 18–30

21.8 (20.1–24.0) [6]

22.2 (20.7–24.2) [5]

21.6 (20.0–23.8) [1]

0.118

 31–40

23.4 (21.8–26.2) [14]

23.8 (23.3–27.1) [6]

23.0 (20.6–25.7) [7]

0.014

 41–50

24.6 (21.6–28.4) [14]

25.7 (22.8–29.0 [8]

24.2 (21.3–28.1) [6]

0.031

 51–60

25.3 (22.1–29.4) [11]

25.4 (23.4–29.8) [6]

25.3 (21.9–29.4) [5]

0.236

 61–70

24.7 (21.5–29.6) [6]

26.5 (23.5–29.2) [3]

24.5 (21.2–30.1) [3]

0.280

Obesity (BMI ≥30) at each life period (years) – n (%) [Missing]

 18–30

13 (4) [6]

4 (5) [5]

9 (4) [1]

0.526

 31–40

30 (10) [14]

13 (18) [6]

17 (8) [8]

0.023

 41–50

46 (15) [14]

12 (17) [8]

34 (15) [6]

0.709

 51–60

55 (24) [11]

12 (24) [6]

43 (24) [5]

1.000

 61–70

21 (25) [6]

3 (20) [3]

18 (26) [3]

0.751

Ever smoked cigarettes – n (%) [Missing]

117 (37) [0]

31 (39) [0]

86 (37) [0]

0.731

Ever consumed alcohol – n (%) [Missing]

308 (98) [0]

79 (99) [0]

229 (97) [0]

0.495

Age first consumed alcohol (years)

 Mean

16.5

16.8

16.4

0.376

 SD

3.0

3.3

2.8

 

 Median

16

16

16

0.996

 IQR

15–18

15–18

15–18

 

 [Missing]

[0]

[0]

[0]

 

Ever regularly consumed alcohol – n (%) [Missing]

265 (86) [0]

67 (86) [0]

198 (86) [0]

0.900

Age when started regular consumption (years) – n (%)

 12–17

23 (9)

2 (3)

21 (11)

0.032 (Cramer’s V = 0.21)

 18–30

192 (72)

53 (79)

139 (70)

 31–40

27 (10)

3 (4)

24 (10)

 41–50

13 (5)

5 (7)

8 (4)

 

 51–60

9 (3)

3 (4)

6 (3)

 

 61–70

1 (0)

1 (1)

0 (0)

 

 [Missing]

[0]

[0]

[0]

 
  1. *Difference between cases and controls using Chi-Square, Mann-Whitney, t-test as appropriate and Fisher’s 2-sided exact used in the case of small cell counts
  2. Significant results (p < 0.05) in bold
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BMC Public Health

ISSN: 1471-2458

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