Table 6.

Symptom Score (Reflux Disease Questionnaire RDQ) in all patients and in patients with normal or reduced productivity

RDQ Scale	Working patients	No reduced productivity	Reduced productivity	Difference	P value
	total	(WPS)	(WPS)
	N = 249	N = 97	N = 152
Regurgitation	1.67 (1.41)	1.40 (1.39)	1.84 (1.40)	-0.44	0.02
Heartburn	1.23 (1.36)	1.00 (1.29)	1.38 (1.39)	-0.38	0.04
Dyspepsia	1.48 (1.36)	1.21 (1.35)	1.64 (1.33)	-0.43	0.01
GERD (regurgitation + heartburn)	1.45 (1.22)	1.20 (1.20)	1.61 (1.20)	-0.41	< 0.01