Table 4.
Inter-item correlation matrix (Spearman's rho). CLINICAL Group (With a gastrointestinal disease).
| q1 | q2 | q3 | q4 | q5 | q6 | q7 | q8 | q9 | q10 | q11 | q12 | q13 | q14 | q15 | q16 | q17 | q18 | q19 | q20 | q21 | q22 | q23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| q1 | #### | .257⁎⁎ | −0.130 | −0.271⁎⁎ | −0.250⁎⁎ | −0.299⁎⁎ | −0.146 | .046 | −0.156 | −0.112 | −0.053 | −0.276⁎⁎ | −0.178* | −0.205* | −0.305⁎⁎ | −0.011 | −0.027 | .051 | −0.235⁎⁎ | −0.201* | −0.183* | −0.080 | −0.028 |
| q2 | .257⁎⁎ | #### | .133 | −0.037 | .116 | .112 | .173* | .239⁎⁎ | .189* | .201* | .180* | .032 | .098 | .066 | .021 | .117 | .130 | .063 | −0.002 | −0.053 | .019 | −0.056 | .105 |
| q3 | −0.130 | .133 | #### | .380⁎⁎ | .629⁎⁎ | .532⁎⁎ | .409⁎⁎ | .348⁎⁎ | .314⁎⁎ | .390⁎⁎ | .099 | .117 | .104 | .542⁎⁎ | .373⁎⁎ | .300⁎⁎ | .263⁎⁎ | .113 | .395⁎⁎ | .060 | .257⁎⁎ | .044 | .149 |
| q4 | −0.271⁎⁎ | −0.037 | .380⁎⁎ | #### | .398⁎⁎ | .419⁎⁎ | .212* | .139 | .158 | .142 | .054 | .345⁎⁎ | .392⁎⁎ | .455⁎⁎ | .383⁎⁎ | .185* | .230⁎⁎ | .082 | .425⁎⁎ | .192* | .356⁎⁎ | .139 | .105 |
| q5 | −0.250⁎⁎ | .116 | .629⁎⁎ | .398⁎⁎ | #### | .506⁎⁎ | .351⁎⁎ | .257⁎⁎ | .327⁎⁎ | .313⁎⁎ | .140 | .261⁎⁎ | .307⁎⁎ | .491⁎⁎ | .316⁎⁎ | .244⁎⁎ | .221⁎⁎ | −0.013 | .365⁎⁎ | .051 | .214* | .118 | .105 |
| q6 | −0.299⁎⁎ | .112 | .532⁎⁎ | .419⁎⁎ | .506⁎⁎ | #### | .383⁎⁎ | .382⁎⁎ | .330⁎⁎ | .453⁎⁎ | .050 | .414⁎⁎ | .420⁎⁎ | .555⁎⁎ | .506⁎⁎ | .406⁎⁎ | .265⁎⁎ | .153 | .352⁎⁎ | .194* | .320⁎⁎ | −0.005 | .075 |
| q7 | −0.146 | .173* | .409⁎⁎ | .212* | .351⁎⁎ | .383⁎⁎ | #### | .640⁎⁎ | .311⁎⁎ | .596⁎⁎ | .056 | .074 | .143 | .389⁎⁎ | .196* | .173* | .096 | −0.037 | .319⁎⁎ | .152 | .202* | .032 | .256⁎⁎ |
| q8 | .046 | .239⁎⁎ | .348⁎⁎ | .139 | .257⁎⁎ | .382⁎⁎ | .640⁎⁎ | #### | .212* | .554⁎⁎ | .064 | .121 | .163 | .218* | .070 | .311⁎⁎ | .210* | .042 | .239⁎⁎ | .058 | .019 | −0.092 | .201* |
| q9 | −0.156 | .189* | .314⁎⁎ | .158 | .327⁎⁎ | .330⁎⁎ | .311⁎⁎ | .212* | #### | .446⁎⁎ | .151 | .049 | .053 | .345⁎⁎ | .204* | .208* | .104 | −0.124 | .139 | .051 | −0.012 | .002 | .248⁎⁎ |
| q10 | −0.112 | .201* | .390⁎⁎ | .142 | .313⁎⁎ | .453⁎⁎ | .596⁎⁎ | .554⁎⁎ | .446⁎⁎ | #### | .124 | .216* | .205* | .356⁎⁎ | .294⁎⁎ | .250⁎⁎ | .118 | −0.107 | .270⁎⁎ | .286⁎⁎ | .180* | .108 | .251⁎⁎ |
| q11 | −0.053 | .180* | .099 | .054 | .140 | .050 | .056 | .064 | .151 | .124 | #### | .140 | .124 | .004 | .025 | −0.169* | .091 | .169* | −0.009 | .047 | .029 | −0.040 | .082 |
| q12 | −0.276⁎⁎ | .032 | .117 | .345⁎⁎ | .261⁎⁎ | .414⁎⁎ | .074 | .121 | .049 | .216* | .140 | #### | .774⁎⁎ | .283⁎⁎ | .417⁎⁎ | .111 | .115 | .010 | .321⁎⁎ | .236⁎⁎ | .202* | .049 | .037 |
| q13 | −0.178* | .098 | .104 | .392⁎⁎ | .307⁎⁎ | .420⁎⁎ | .143 | .163 | .053 | .205* | .124 | .774⁎⁎ | #### | .379⁎⁎ | .357⁎⁎ | .194* | .159 | .093 | .380⁎⁎ | .222⁎⁎ | .316⁎⁎ | .040 | .100 |
| q14 | −0.205* | .066 | .542⁎⁎ | .455⁎⁎ | .491⁎⁎ | .555⁎⁎ | .389⁎⁎ | .218* | .345⁎⁎ | .356⁎⁎ | .004 | .283⁎⁎ | .379⁎⁎ | #### | .570⁎⁎ | .350⁎⁎ | .279⁎⁎ | .092 | .377⁎⁎ | .245⁎⁎ | .513⁎⁎ | .122 | .187* |
| q15 | −0.305⁎⁎ | .021 | .373⁎⁎ | .383⁎⁎ | .316⁎⁎ | .506⁎⁎ | .196* | .070 | .204* | .294⁎⁎ | .025 | .417⁎⁎ | .357⁎⁎ | .570⁎⁎ | #### | .208* | .225⁎⁎ | .112 | .320⁎⁎ | .309⁎⁎ | .559⁎⁎ | .116 | −0.078 |
| q16 | −0.011 | .117 | .300⁎⁎ | .185* | .244⁎⁎ | .406⁎⁎ | .173* | .311⁎⁎ | .208* | .250⁎⁎ | −0.169* | .111 | .194* | .350⁎⁎ | .208* | #### | .488⁎⁎ | .083 | .168 | .009 | .212* | −0.032 | −0.002 |
| q17 | −0.027 | .130 | .263⁎⁎ | .230⁎⁎ | .221⁎⁎ | .265⁎⁎ | .096 | .210* | .104 | .118 | .091 | .115 | .159 | .279⁎⁎ | .225⁎⁎ | .488⁎⁎ | #### | .317⁎⁎ | .299⁎⁎ | .094 | .312⁎⁎ | −0.024 | −0.097 |
| q18 | .051 | .063 | .113 | .082 | −0.013 | .153 | −0.037 | .042 | −0.124 | −0.107 | .169* | .010 | .093 | .092 | .112 | .083 | .317⁎⁎ | #### | .076 | −0.092 | .232⁎⁎ | −0.181* | −0.152 |
| q19 | −0.235⁎⁎ | −0.002 | .395⁎⁎ | .425⁎⁎ | .365⁎⁎ | .352⁎⁎ | .319⁎⁎ | .239⁎⁎ | .139 | .270⁎⁎ | −0.009 | .321⁎⁎ | .380⁎⁎ | .377⁎⁎ | .320⁎⁎ | .168 | .299⁎⁎ | .076 | #### | .253⁎⁎ | .334⁎⁎ | .075 | .149 |
| q20 | −0.201* | −0.053 | .060 | .192* | .051 | .194* | .152 | .058 | .051 | .286⁎⁎ | .047 | .236⁎⁎ | .222⁎⁎ | .245⁎⁎ | .309⁎⁎ | .009 | .094 | −0.092 | .253⁎⁎ | #### | .358⁎⁎ | .177* | .183* |
| q21 | −0.183* | .019 | .257⁎⁎ | .356⁎⁎ | .214* | .320⁎⁎ | .202* | .019 | −0.012 | .180* | .029 | .202* | .316⁎⁎ | .513⁎⁎ | .559⁎⁎ | .212* | .312⁎⁎ | .232⁎⁎ | .334⁎⁎ | .358⁎⁎ | #### | .146 | .038 |
| q22 | −0.080 | −0.056 | .044 | .139 | .118 | −0.005 | .032 | −0.092 | .002 | .108 | −0.040 | .049 | .040 | .122 | .116 | −0.032 | −0.024 | −0.181* | .075 | .177* | .146 | #### | .351⁎⁎ |
| q23 | −0.028 | .105 | .149 | .105 | .105 | .075 | .256⁎⁎ | .201* | .248⁎⁎ | .251⁎⁎ | .082 | .037 | .100 | .187* | −0.078 | −0.002 | −0.097 | −0.152 | .149 | .183* | .038 | .351⁎⁎ | #### |
**Correlation is significant at the 0.01 level (2-tailed).
*Correlation is significant at the 0.05 level (2-tailed).
####Correlation coefficient = 1.