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Table 2 Health characteristics of participants in a case control study of mastitis.

From: A case-control study of mastitis: nasal carriage of Staphylococcus aureus

 

Cases (N = 100) n (%)

Controls (N = 99) n (%)

Odds Ratio

95% CI

Significance*

Mother's Health

      

Breast surgery:

7/100 (7)

5/99 (5)

1.42

0.43

4.62

p = 0.565

Past history staphylococcal infection

23/100 (23)

12/99 (12)

2.17

1.01

4.64

**p = 0.047

Past history candida infection

16/97 (17)

8/95 (9)

2.15

0.87

5.29

p = 0.096

Past history mastitis (previous child)

12/100 (12)

12/99 (12)

0.99

0.42

2.32

p = 0.979

Smoker

5/100 (5)

4/99 (4)

1.25

0.33

4.80

p = 0.745

Anaemic

10/100 (10)

5/99 (5)

2.09

0.69

6.35

p = 0.194

Scored below average on vitality score (from SF36)

61/100 (61)

26/99 (26)

4.39

2.41

8.01

**p = 0.000

Baby's Health

      

Unwell

16/100 (16)

11/98 (11)

1.51

0.66

3.43

p = 0.330

Difficulty breastfeeding

57/100 (57)

14/99 (14)

8.05

4.04

16.05

**p = 0.000

  1. (n = 100 women with mastitis and 99 breastfeeding controls). Melbourne, Australia, 2002–2004.
  2. *chi-square test for all analyses.
  3. **statistically significant.