Table 2.

Gamma for generalized additive models evaluated on held-out data.

Predictors	Physical capacity measurement	Gamma
BMIa, age, sex, height, OAb subcohort, function profile	400MWTc	0.62 (0.10)d
BMI, age, sex, height, OA subcohort, function profile	20MPACEe	0.53 (0.07)d
BMI, age, sex, height, OA subcohort, function profile	5CSPACEf	0.51 (0.04)d
BMI, age, sex, height, OA subcohort	400MWT	0.52
BMI, age, sex, height, OA subcohort	20MPACE	0.46
BMI, age, sex, height, OA subcohort	5CSPACE	0.47

^aBMI: body mass index.

^bOA: osteoarthritis.

^c400MWT: 400-m walk test

^dThe values in parentheses indicate improvement over baseline performance without function profile predictors.

^e20MPACE: the average pace in a 20-m walk test.

^f5CSPACE: number of sit-to-stands per second measured over 5 repetitions.