Table 3.

Phenotypic Class Characteristics From the 4-Class Model

		N	Mean	SD	SE	95% Confidence Interval for Mean		Minimum	Maximum
						Lower Bound	Upper Bound
Age	High distress	299	39.28	13.33	0.77	37.76	40.79	18	91
	Negative pain coping	176	39.27	12.64	0.95	37.39	41.15	18	76
	Low distress	172	39.50	12.75	0.97	37.58	41.42	18	72
	Low self-efficacy and acceptance	74	39.23	13.95	1.62	35.05	41.52	18	76
Total yellow flags (# out of 11)	High distress	299	9.55	1.39	0.08	9.39	9.71	5	11
	Negative pain coping	176	5.49	1.70	0.13	5.24	5.74	2	9
	Low distress	172	1.17	1.36	0.10	0.97	1.38	0	6
	Low self-efficacy and acceptance	74	4.43	1.55	0.18	4.07	4.79	2	8
IHOT-12 total mean score	High distress	299	23.51	17.63	1.02	21.51	25.52	0.00	100
	Negative pain coping	176	34.50	18.78	1.42	31.71	37.29	1.00	94
	Low Distress	172	47.21	21.30	1.62	44.00	50.41	0.00	94
	Low self-efficacy and acceptance	74	44.33	24.42	2.84	38.68	49.99	1.00	96

iHOT-12, International Hip Outcome Tool–12.