How are those “lost to follow-up” patients really doing? A compliance comparison in arthroplasty patients

Table 3 Comparison of active follow-up in the office and non-compliant with office follow-up visits outcome scores at one year

Group	OFU	NFU	P value
SF12 physical	45.1 ± 11.2	46.2 ± 11.2	0.685
SF12 mental	53.4 ± 9.2	54.1 ± 9.5	0.283
WOMAC pain score	89.1 ± 19.6	88.8 ± 20.5	0.612
WOMAC stiffness score	73.1 ± 24.7	75.3 ± 25.7	0.657
WOMAC function score	80.4 ± 21.7	82.4 ± 21.6	0.849

WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; OFU: Active follow-up in the office; NFU: Non-compliant with office follow-up visits.