Simplified Chinese version of hip and knee replacement expectations surveys in patients with osteoarthritis and ankylosing spondylitis: cross-cultural adaptation, validation and reliability

Table 1 Patient characteristics and mean total scores of the questionnaires

Characteristics^a	OA		AS
Characteristics^a	Hip	Knee	AS
Number	104	101	51
Gender
female	55 (52.4)	68 (67.3)	5 (9.8)
Age in years	63.8 ± 9.4	65.1 ± 8.4	41.3 ± 12.1
Body mass index in kg/m²	24.9 ± 3.1	26 ± 2.2	21.7 ± 2.0
Education
Low	63 (60.6)	65 (64.4)	18 (35.3)
Medium	29 (27.9)	26 (25.7)	27 (52.9)
High	12 (11.5)	10 (9.9)	6 (11.8)
Living situation
Living alone	20 (19.2)	24 (23.1)	8 (15.7)
Living with partner and/or children	84 (80.8)	77 (76.2)	43 (84.3)
Expectation Score A	75.3 ± 12.7	72.6 ± 11.1	79.5 ± 12.9
Expectation Score B	73.9 ± 9.6	71.9 ± 8.3	78.4 ± 11.3
Expectation WOMAC Score	88.1 ± 9.9	84.9 ± 10.8	91.1 ± 9.6

OA osteoarthritis, AS ankylosing spondylitis, WOMAC Western Ontario and Mc Master Universities Osteoarthritis index
^aQuantitative variables: mean standard deviation; categorical variables: frequency (percentage)

ISSN: 1471-2474