Table 2.

Multiple linear regression analysis

	Forgotten Joint Score			Oxford Knee Score
	Adjusted mean	95% CI	p value	Adjusted mean	95% CI	p value
Age (years)
< 55	60.7	49.1–72.3	0.290	39.0	35.3–42.6	0.293
55–65	66.8 (reference)	56.9–76.7	–	39.8 (reference)	36.7–42.9	–
65–75	69.5	60.3–78.6	0.582	40.4	37.5–43.3	0.968
> 75	76.9	64.4–89.4	0.136	41.6	37.7–45.6	0.003
BMI (kg/m2)
< 5	69.3	55.5– 83.1	0.708	42.1	37.7–46.4	0.293
25–30	66.8 (reference)	56.9–76.7	–	39.8 (reference)	36.7–42.9	–
30–35	67.8	58.5–77.0	0.846	37.8	35.0–40.8	0.223
35–40	72.0	60.1–83.8	0.436	40.0	36.1–43.6	0.968
> 40	48.8	36.0–60.9	0.009	33.3	29.3–37.2	0.003
Male	71.0	61.2–80.8	0.288	40.8	37.7–43.9	0.419

BMI body mass index, CI confidence interval