Gastrointestinal (GI)-Specific patient reported outcomes instruments differentiate between renal transplant patients with or without GI symptoms: results from a South American cohort

Table 2 Test-retest Reliability (Reproducibility): Score Stability of the GSRS and GIQLI

	N	Mean Test 1	Mean Test 2	Difference	Wilcoxon Rank-Sum test		Kendall's Tau correlation	ICC
					Signed rank	p-value
GSRS
Abdominal Pain	20	1.88	1.73	-0.15	-11.50	0.39	0.64^a	0.80
Reflux Syndrome	20	1.48	1.13	-0.35	-7.50	0.06	0.67^b	0.57
Diarrhea	20	1.37	1.63	0.27	12.00	0.25	0.49^b	0.16
Indigestion Syndrome	20	1.76	1.71	-0.05	-2.00	0.89	0.72^a	0.93
Constipation	20	1.57	1.50	-0.07	-9.00	0.19	0.73^a	0.98
GIQLI
Total Score	19	121.64	124.45	2.81	7.00	0.68	0.60^a	0.87
Symptoms	20	3.47	3.53	0.06	45.50	0.02	0.67^a	0.78
Emotion	20	3.04	3.31	0.27	11.50	0.57	0.74^a	0.81
Physical Function	20	3.08	3.15	0.07	6.50	0.64	0.53^b	0.90
Social Function	20	3.40	3.48	0.08	-0.50	1.00	0.81^a	0.82
Medical Treatment	19	3.63	3.58	-0.05	28.50	0.23	0.60^a	0.72

ISSN: 1477-7525