BMC Musculoskeletal Disorders

Table 2 One-way ANOVA test of abilities of value sets to differentiate among ASA classes pre- and 1 year postoperatively (n = 69,290)

From: Predictive ability of the American Society of Anaesthesiologists physical status classification system on health-related quality of life of patients after total hip replacement: comparisons across eight EQ-5D-3L value sets

Follow-up		Value sets
Follow-up		Swedish VAS	German VAS	Danish^a VAS	UK^a VAS	Swedish TTO	German^a TTO	Danish^a TTO	UK^a TTO
Preoperative
Mean	Overall	0.54	0.49	0.44	0.49	0.73	0.54	0.54	0.42
	Class I	0.56	0.51	0.46	0.52	0.75	0.58	0.58	0.46
	Class II	0.54	0.49	0.44	0.49	0.73	0.54	0.54	0.42
	Class III	0.50	0.46	0.40	0.44	0.70	0.48	0.49	0.34
	Class IV	0.46	0.42	0.36	0.38	0.67	0.40	0.41	0.25
Effect size [Eta squared (η²)]		0.015	0.014	0.019	0.015	0.016	0.012	0.015	0.014
P-value		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
1-year postoperative
Mean	Overall	0.75	0.73	0.72	0.78	0.88	0.86	0.82	0.79
	Class I	0.80	0.77	0.79	0.84	0.91	0.90	0.87	0.85
	Class II	0.75	0.72	0.71	0.78	0.88	0.86	0.82	0.79
	Class III	0.69	0.66	0.62	0.70	0.84	0.80	0.76	0.71
	Class IV	0.66	0.63	0.58	0.67	0.81	0.77	0.72	0.67
Effect size [Eta squared (η²)]		0.043	0.042	0.044	0.040	0.043	0.032	0.037	0.035
P-value		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

^a Hypothetical perspective

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