. 2022 Feb 4;10:20. doi: 10.1186/s40359-022-00731-w

Table 2.

Bivariate correlations of symptom improvement variables in the double-blind condition

Symptom improvement			IBS-SSS		Interview
Symptom improvement			Yes/No^a	Degree^b	Yes/No^c	Degree^d
IBS-SSS	Yes/No^a	Spearman’s rho	1	.658	.782	.580
	Yes/No^a	p value		.011	.001	.030
	Degree^b	Spearman’s rho	.658	1	.772	.695
	Degree^b	p value	.011		.001	.006
Interview	Yes/No^c	Spearman’s rho	.782	.772	1	742
	Yes/No^c	p value	.001	.001		.002
	Degree^d	Spearman’s rho	.580	.695	742	1
	Degree^d	p value	.030	.006	.002

Sample size n = 14

IBS-SSS = irritable bowel severity scoring system

^a“Yes” is specified as at least 50 points of improvement on the IBS-SSS

^bDegree is specified as no (< 50 points improvement on the IBS-SSS), mild (≥ 50 points improvement), moderate (≥ 100 points improvement) or high (≥ 150 points improvement) improvement

^c“Yes” is specified as report of any symptom improvement in the interview

^dDegree is specified as report of no, mild, moderate or high improvement in the interview