Table 3

Incidence rate ratios of non-melanoma skin cancer during follow-up to 2004, for subjects with a cutaneous malignant melanoma (CMM), basal cell carcinoma (BCC) or squamous cell carcinoma (SCC) of the skin during 1998–99 classified by their self-reported dietary fat intake at that time.

Fat score*

Events†

PY‡

Rate§

IRR (95%CI)¶

Both sexes

CMM

1–21 points

12

426.1

28.2

1.00

22–28 points

11

495.5

22.2

0.72(0.31–1.68)

29–51 points

9

327.6

27.5

0.82(0.32–2.05)

Trend

p = 0.64

BCC

1–21 points

38

311.5

122.0

1.00

22–28 points

28

303.9

92.1

0.67(0.39–1.14)

29–51 points

31

270.4

114.7

0.83(0.48–1.42)

Trend

p = 0.51

SCC

1–21 points

19

325.2

58.4

1.00

22–28 points

20

317.9

62.9

0.79(0.41–1.55)

29–51 points

17

273.5

62.2

0.83(0.42–1.67)

Trend

p = 0.61

NOTES

* Based on frequency of consumption of 17 foods high in fat.

† Number of new BCC or SCC lesions during follow-up.

‡ Person-years of observation from date of diagnosis in 1998–99 to end of follow-up on 31 August, 2004.

§ Incidence per 1,000 person-years.

¶ Incidence rate ratio (95% confidence interval) adjusted for sex, age and density of cutaneous melanin at the upper inner arm.

Granger et al. BMC Cancer 2006 6:141   doi:10.1186/1471-2407-6-141