Task-Contingent Persistence is Related to Better Performance-Based Measures in Patients with Chronic Musculoskeletal Pain

Table 2

Mean POAM-P scores according to sociodemographic variables.

Variable	N	Possible values	Avoidance			Pacing			Overdoing
			Mean	Eta-squared	value	Mean	Eta-squared	value	Mean	Eta-squared	value
Gender	16	Female	27.5	0.0014	0.518	28.7	0.006	0.182	22.8	0.003	0.342
	288	Male	28.9			25.9			20.8
Injuries location	134	Upper limb	28.6	0.014	0.244	26.0	0.018	0.143	21.1	0.028	0.037
	128	Lower limb	29.5			26.0			19.7
	35	Back	27.5			27.7			23.6
	6	Multiple sites	23.8			19.3			25.7
AIS	92	Minor	29.6	0.010	0.220	26.2	0.000	0.955	20.5	0.002	0.786
	169	Moderate	29.1			26.0			21.0
	38	Severe	26.9			26.4			21.5
Native language	166	French	27.5	0.032	0.002	25.5	0.007	0.156	21.6	0.009	0.098
	138	Other	30.4			26.8			20.1
Education	126	<9 years	29.2	0.002	0.455	26.9	0.007	0.149	20.5	0.001	0.528
	177	≥9 years	28.5			25.5			21.2
Employment contract	149	Yes	28.8	<0.001	0.962	26.5	0.003	0.353	20.7	<0.001	0.688
	155	No	28.8			25.6			21.1
Work-related injury	163	Yes	28.4	0.003	0.307	26.1	<0.001	0.890	20.3	0.007	0.157
	137	No	29.3			26.0			21.7

Student’s t-tests or analysis of variance to compare groups. POAM-P: Patterns of Activity Measures-pain; AIS = Abbreviated Injury Scale. Effect size (eta-squared) [42]: 0.01 = small; 0.06 = medium; 0.14 = large.