Table 3. Host factors and risk of skin tumours.

	Controls	CMM			SCC			BCC
	N	N	Crude OR	Adj ORa	N	Crude OR	Adj ORa	N	Crude OR	Adj ORa
Hair colour
Dark	156	46	1	1	39	1	1	63	1	1
Brown	127	103	2.7	2.6	58	1.8	2.1	82	1.6	1.7
			(1.81–4.18)	(1.63–4.20)		(1.14–2.92)	(1.21–3.50)		(1.07–2.39)	(1.08–2.59)
Blonde	41	41	3.4	2.7	26	2.5	2.6	42	2.5	2.2
			(1.97–5.84)	(1.43–5.03)		(1.39–4.64)	(1.29–5.07)		(1.51–4.27)	(1.27–3.91)
Light blonde/Red	25	24	3.3	1.9	16	2.6	1.9	28	2.8	2.3
			(1.70–6.23)	(0.87–4.00)		(1.27–5.25)	(0.85–4.40)		(1.50–5.12)	(1.15–4.49)
P-linear trend			P<0.001	P<0.001		P=0.002	P=0.003		P<0.001	P<0.001
Eye colour
Dark	110	44	1	1	28	1	1	37	1	1
Chesnut	96	57	1.5	1.2	33	1.3	1.2	48	1.5	1.3
			(0.92–2.40)	(0.70–2.17)		(0.76–2.40)	(0.62–2.16)		(0.89–2.47)	(0.75–2.18)
Green	42	50	3.0	3.2	26	2.4	1.9	56	4.0	3.4
			(1.74–5.10)	(1.69–6.04)		(1.28–4.62)	(0.90–3.95)		(2.29–6.85)	(1.92–6.22)
Blue/Grey	68	37	1.4	1.3	30	1.7	1.2	45	2.0	1.4
			(0.80–2.31)	(0.67–2.49)		(0.95–3.15)	(0.57–2.33)		(1.16–3.34)	(0.77–2.56)
Light blue	33	26	2.0	1.7	22	2.6	1.6	29	2.6	1.8
			(1.06–3.67)	(0.80–3.68)		(1.32–5.17)	(0.76–3.95)		(1.40–4.87)	(0.94–3.66)
P-linear trend			P=0.005	P<0.001		P=0.010	P=0.011		P<0.001	P<0.001
Tendency to tan
Tan	178	89	1	1	40	1	1	90	1	1
No Tan	171	125	1.5	1.2	99	2.6	2.7	125	1.4	1.5
			(1.04–2.06)	(0.77–1.77)		(1.69–3.93)	(1.67–4.27)		(1.03–2.04)	(1.01–2.12)
Tendency to sunburn
No sunburns	52	25	1	1	23	1	1	24	1	1
Sunburn/Blisters	297	189	1.3	0.8	116	0.9	0.6	191	1.4	1.0
			(0.79–2.21)	(0.46–1.48)		(0.52–1.51)	(0.31–1.06)		(0.83–2.34)	(0.59–1.78)
Number of naevi (forearm count)
0	177	60	1	1	81	1	1	105	1	1
1–5	102	69	2.0	1.4	34	0.7	0.7	76	1.3	1.2
			(1.31–3.05)	(0.85–2.26)		(0.46–1.16)	(0.42–1.25)		(0.86–1.84)	(0.78–1.85)
6–10	32	38	3.5	1.9	14	1.0	1.1	16	0.8	0.8
			(2.01–6.10)	(0.98–3.63)		(0.48–1.89)	(0.49–2.50)		(0.44–1.61)	(0.37–1.61)
11+	38	47	3.6	1.5	10	0.6	0.4	18	0.8	0.7
			(2.17–6.13)	(0.72–2.82)		(0.27–1.21)	(0.16–1.13)		(0.43–1.47)	(0.35–1.47)
P-linear trend			P<0.001	P<0.001		P=0.176	P=0.530		P=0.697	P=0.754
Number of moles>10 mm
No	327	193	1	1	126	1	1	195	1	1
Yes	22	21	1.6	0.9	13	1.5	2.0	20	1.5	1.6
			(0.87–3.02)	(0.41–1.99)		(0.75–3.14)	(0.83–4.68)		(0.81–2.86)	(0.79–3.32)
Number of naevi (Chart)
No moles	140	30	1	1	70	1	1	78	1	1
Some	186	121	3.0	2.4	59	0.6	0.8	120	1.2	1.2
			(1.92–4.79)	(1.42–4.14)		(0.42–0.96)	(0.48–1.33)		(0.81–1.66)	(0.82–1.91)
Several	23	63	12.8	8.4	10	0.9	1.7	17	1.3	1.5
			(6.88–23.74)	(3.92–18.13)		(0.39–1.93)	(0.62–4.64)		(0.67–2.63)	(0.68–3.38)
P-linear trend			P<0.001	P<0.001		P=0.170	P=0.806		P=0.346	P=0.139
Freckles
None	289	131	1	1	107	1	1	155	1	1
Some/Several	60	83	3.1	2.3	32	1.4	1.6	60	1.9	1.6
			(2.06–4.51)	(1.43–3.60)		(0.89–2.34)	(0.93–2.87)		(1.24–2.80)	(1.00–2.51)

^aAdjusted by age and country of interview and all other variables in the table.