Table 2.

Dietary habits of lung cancer patients (n = 92) and control subjects (n = 157)

Dietary habits		Lung cancer patients n (%)	Control subjects n (%)	P
High-GI cereal products	≥ 3 portions a day	51 (55.4)	68 (43.3)	NS
	1–2 portions a day	38 (41.3)	74 (47.1)
	Irregularly	3	15 (9.6)
Low-GI cereal products	≥ 3 portions a day	0 (0.0)	9 (5.7)	< 0.01
	1–2 portions a day	36 (39.1)	67 (42.7)
	Irregularly	56 (60.9)	81 (51.6)
Vegetables	≥ 4 portions a day	2 (2.2)	7 (4.5)	NS
	2–3 portions a day	40 (43.5)	75 (47.8)
	1 portion a day	42 (45.6)	66 (42.0)
	Irregularly	8 (8.7)	9 (5.7)
Fruit	≥ 4 portions a day	7 (7.6)	12 (7.6)	NS
	2–3 portions a day	20 (21.7)	44 (28.0)
	1 portion a day	25 (21.2)	59 (37.6)
	Irregularly	40 (43.5)	42 (26.8)
Vegetable juices	≥ 1 glass a day	5 (5.4)	3 (1.9)	NS
	4–6 glasses a week	4 (4.4)	3 (1.9)
	1–3 glasses a week	14 (15.2)	22 (14.1)
	< one glass a week	69 (75.0)	128 (82.1)
Fruit juices	≥ 1 glass a day	22 (23.9)	22 (14.1)	NS
	4–6 glasses a week	3 (3.3)	10 (6.4)
	1–3 glasses a week	21 (22.8)	55 (35.3)
	< one glass a week	46 (50.0)	69 (44.2)
Green tea	≥ 1 glass a day	8 (8.7)	32 (20.5)	NS
	4–6 glasses a week	2 (2.2)	2 (1.3)
	1–3 glasses a week	7 (7.6)	15 (9.6)
	< one glass a week	75 (81.5)	107 (68.6)
Milk and liquid dairy products	≥ 4 glasses a day	5 (5.4)	7 (4.5)	NS
	2–3 glasses a day	9 (9.8)	34 (21.6)
	0.5–1 glass a day	30 (32.6)	43 (27.4)
	Irregularly	48 (52.2)	73 (46.5)
Meat	≥ 4 portions a day	0 (0.0)	5 (3.2)	< 0.01
	2–3 portions a day	23 (25.0)	61 (38.9)
	1 portion a day	37 (40.2)	55 (35.0)
	Irregularly	32 (34.8)	36 (22.9)
Fried products	Every day	15 (16.3)	16 (10.3)	0.01
	4–6 portions a week	10 (10.9)	40 (25.6)
	1–3 portions a week	60 (65.2)	82 (52.6)
	<1 portion a week	7 (7.6)	18 (11.5)
Alcohol consumption	Yes	44 (47.8)	120 (76,4)	< 0.01
	No	48 (52.2)	37 (23.6)

GI – glycemic index