Table 1 Descriptive characteristics of EOC cases and controls in the New England-based case–control study

From: Dietary fat intake and risk of epithelial ovarian cancer by tumour histology

Population characteristics

Cases

Controls

Participants, N

1872

1978

Means (s.d.)

Age (years)a

52.5 (12.3)

52.4 (12.5)

Duration of oral contraceptive use (years)b

4.7 (4.8)

5.7 (5.0)

BMI (kg m–2)

26.4 (6.1)

26.0 (5.5)

Total calories (kcal)

1925.1 (587.7)

1887.5 (575.4)

Percentages

Parous

67.6

82.4

Postmenopausal

52.8

53.0

History of tubal ligation

13.6

19.7

History of endometriosisc

9.3

7.8

Family history of ovarian cancer

4.8

2.7

Means (s.d.) d

Total fat (g day–1)

55.3 (10.9)

55.7 (10.9)

Vegetable fat (g day–1)

25.2 (8.1)

25.3 (8.2)

Animal fat (g day–1)

30.1 (9.8)

30.4 (9.6)

Trans fat (g day–1)

2.1 (0.7)

2.1 (0.7)

Saturated fat (g day–1)

19.3 (4.8)

19.4 (4.7)

Long chain omega-3 (n−3)e (g day–1)

0.3 (0.2)

0.3 (0.3)

Long chain omega-3 (n−3)f (g day–1)

0.3 (0.3)

0.3 (0.3)

Omega-6 (n−6)e (g day–1)

9.0 (2.4)

9.2 (2.5)

Omega-6 (n−6)f (g day–1)

9.0 (2.4)

9.2 (2.5)

  1. Abbreviations: EOC=epithelial ovarian cancer; N=number; n−3=omega-3; n−6=omega-6.
  2. aCases and controls were frequency matched on age.
  3. bDuration of oral contraceptive use among ever users.
  4. cEndometriosis was self-reported and not surgically confirmed.
  5. dReported values are the energy-adjusted nutrient intakes.
  6. eIntakes are from foods only.
  7. fIntakes are from foods plus supplements.
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