Table 6.

Relationship between predictor variables and gastro-duodenal disease following multi-variate analysis

Predictor (%)	GU n=87		DU n=83		GCA n=29		NUD n=64
	OR	(CI)	OR	(CI)	OR	(CI)	OR	(CI)
Age	0.7	0.6– 0.9	1.1	0.9–1.3	0.7	0.5–0.9	1.5	1.2–1.8
Herbal use (50)	0.7	0.4–1.3	0.7	0.4–1.2	2.3	0.9–5.4	0.9	0.5–1.7
Smoking (1.2)	0.9	0.4–2.4	1.2	0.5–3.0	1.1	0.3–3.6	0.6	0.2–1.9
Alcohol (25.6)	0.9	0.6–1.5	1.0	0.7–1.6	0.9	0.5–1.8	1.1	0.6–1.8
NSAID-use (32.6)	1.8	0.9–3.2	1.7	0.9–3.1	0.6	0.3–1.6	0.4	0.2–0.8
H.pylori+ (78.1)	2.4	1.2–4.8	3.5	1.6–7.5	0.6	0.3–1.5	0.2	0.1–0.4