Table 3

Number of gastrointestinal symptoms reported by socioeconomic class

	1st quintile	2nd quintile	3rd quintile	4th quintile	5th quintile
Mean (IQ range) No symptoms	0.71 (0–1)	0.93 (0–1)	0.91 (0–1)^3-151	1.08 (0–1)^3-152	1.09 (0–1)^3-152
No symptoms reported (%)	71.6	69.0	67.0	63.7	63.2
1–2 symptoms reported (%)	18.2	17.7	20.4	20.9	20.8
⩾5 symptoms reported (%)	3.8	6.9	6.2	8.3	7.4

5th quintile is the most disadvantaged socioeconomic class.
↵3-151 p<0.01 compared with 1st quintile (Mann-Whitney test);
↵3-152 p<0.001 compared with 1st quintile (Mann-Whitney test).
Symptom counted if reported to occur often or very often.