Risk factors for proton pump inhibitor refractoriness in Chinese patients with non-erosive reflux disease

Table 1 Self-rating anxiety scale and self-rating depression scale scores in the two groups of patients

Group	n	SAS score	SDS score	SAS%	SDS%
Residual symptoms	97	42.68 ± 6.21	52.36 ± 6.93	46.39% (45/97)	50.52% (49/97)
Symptom-free	159	31.17 ± 6.15	43.13 ± 5.27	10.06% (16/159)	8.18% (13/159)
Control	52	30.74 ± 8.18	35.32 ± 6.71	0.00% (0/20)	1.90% (1/52)

Self-rating anxiety scale (SAS) grades: F = 104.54, P < 0.001; Self-rating depression scale (SDS) grades: F = 143.91, P < 0.001; SAS%: χ² = 52.30, P < 0.001; SDS%: χ² = 79.58, P < 0.001.