. 2020 May 15;45(5):509–520. doi: 10.1093/jpepsy/jsaa030

Table III.

Descriptive Statistics, Reliability Coefficients and Observed Pearson Correlations Among All Variables

	M	SD	1	2	3	4	5	6	7	8	9	10	11	12	13
1. Felt stigma	2.23	.95	(.91)
2. Stigma concealment	3.00	.98	.64^a	(.85)
3. Anxiety (PROMIS)	18.98	8.23	.52^a	.28^a	(.94)
4. Depression (PROMIS)	15.21	7.91	.49^a	.25^a	.70^a	(.96)
5. Pain catastrophizing (PCS)	22.68	12.54	.40^a	.18^b	.65^a	.51^a	(.94)
6. Pain threat (PBQ)	1.75	.90	.34^a	.27^a	.43^a	.41^a	.69^a	(.80)
7. Abdominal pain (API)	2.23	.88	.19^b	.16^b	.19^b	.19^b	.38^a	.59^a	(.78)
8. GI symptoms (CSSI)	1.47	.72	.30^a	.19^a	.29^a	.34^a	.39^a	.51^a	.43^a	(.73)
9. Non-GI symptoms (CSSI)	0.84	.61	.34^a	.18^b	.40^a	.43^a	.33^a	.41^a	.40^a	.56^a	(.88)
10. Pain interference	30.71	10.71	.42^a	.21^a	.60^a	.56^a	.63^a	.61^a	.55^a	.58^a	.65^a	(.89)
11. Functional disability	1.03	.72	.31^a	.20^a	.35^a	.37^a	.47^a	.52^a	.55^a	.58^a	.61^a	.76^a	(.87)
12. Medical visits	2.00	n/a	.01	−.03	.08	.05	.03	.11	.25^a	.05	.15	.18^b	.21^a	(n/a)
13. Mental health visits	.00	n/a	.21^a	.11	.19^b	.33^a	.15^b	.18^b	.19^b	.18^b	.20^a	.23^a	.20^a	.19^b	(n/a)

Note. Reliability coefficients (Cronbach’s alpha) are listed in the diagonal. API = Abdominal Pain Index; CSSI = Children’s Somatic Symptom Inventory; GI = gastrointestinal; PBQ = Pain Beliefs Questionnaire; PCS = Pain Catastrophizing Scale.

Correlation is significant at the .01 level (two-tailed).

Correlation is significant at the .05 level (two-tailed). Healthcare utilization variables (number of medical visits and mental health visits over 3 months) were measured on an ordinal scale and therefore modes are presented in lieu of means.