Table 3.

Correlation of each item and total OHS-C scores

Question	Mean ± SD	Item total correlation	Cronbach’s alpha if item deleted
Describe the pain in the hip	0.70 ± 0.57	0.70	0.90
Troubled by pain in bed at night	1.54 ± 0.72	0.61	0.91
Sudden, severe pain	1.65 ± 0.75	0.65	0.90
Limp when walking	0.56 ± 0.57	0.43	0.91
Distance of walk	1.37 ± 0.71	0.77	0.90
Climb a flight of stairs	1.03 ± 0.56	0.76	0.90
Put on socks, stocking or tights	1.48 ± 0.65	0.69	0.90
Pain when stand up from a chair	1.42 ± 0.60	0.56	0.91
getting in and out of a car	1.61 ± 0.56	0.56	0.91
Washing and drying yourself	1.92 ± 0.76	0.65	0.90
Household shopping by own	0.98 ± 0.56	0.70	0.90
Interfere with the usual life	1.06 ± 0.45	0.76	0.90
Cronbach’s alpha: 0.91

OHS-C = Chinese version of the Oxford Hip Score.