Table 4:

Effect of the Geriatric Assessment (GA) Intervention on GA Outcomes

Outcomes	Range	Overall between-arm difference (GA-usual care) or risk ratio	P value	P value for site clustering effect
Instrumental Activities of Daily Living scores over 3 months *	0–14	−0·13 (−0·58–0·31)	0·50	0·28
Short Physical Performance Battery scores over 3 months *	0–12	−0·33 (−0·80–0·14)	0·15	0·36
OARS physical health subscale scores over 3 months *	0–20	−0·24 (−1·15–0·65)	0·55	0·28
Geriatric Depression Scale scores over 3 months *	0–15	−0·04 (−0·52–0·43)	0·84	0·20
Number of prescription medications discontinued prior to starting cancer treatment regimen	0–11	0·10 (0–0·20)	0·03	N/A
Number of overall medications (prescription and non-prescription) discontinued prior to starting cancer treatment regimen	0–13	0·14 (0·03–0·25)	0·02	N/A
Any fall over 3 months	0–1	risk ratio 0·58 (0·40–0·84)	<0·01	N/A

Abbreviation: OARS, Older Americans Resources and Services;

Higher scores indicate better health except for depression scale and medications;

^*Measures were analyzed using linear mixed models adjusted for baseline values;

Polypharmacy was analyzed using adjusted linear regression models;

Any fall over 3 months was analyzed using generalized linear regression model (binary distribution with log link) adjusted for baseline values;

N/A, models with practice site random effect did not converge.