Appendix Table 5.

Absolute presenteeism stratified by joint and whether static, declining, or improving performance leading up to surgery

Absolute Presenteeism	Before Surgery to 6 Months After					Before Surgery to 1 Year After
	N	Mean Before	Mean After	Mean Δ	Rank P-value	N	Mean Before	Mean After	Mean Δ	Rank P-value
Knee, Static	126	88.9	88.8	−0.1	0.5961	123	87.8	89.4	1.5	0.0415
Knee, Declining	75	72.5	86.7	14.1	<0.0001	74	70.1	89.5	19.3	<0.0001
Knee, Improving	8	85.0	88.8	3.8	0.666	12	89.2	88.3	−0.8	0.6851
Hip, Static	116	89.9	91.9	2.0	0.0614	118	89.5	90.6	1.1	0.0663
Hip, Declining	100	70.5	87.7	17.2	<0.0001	104	68.7	88.9	20.2	<0.0001
Hip, Improving	9	83.3	88.9	5.6	0.4147	9	83.3	80.0	−3.3	0.7192

Note: n=1 respondent cannot be classified as static, declining, or improving because of insufficient baseline responses