Table 3.

The Association Between Self-reported Physical Function Categorized Using Four Methods With Combined Any ADL and IADL Disability, Any ADL Disability, and Any IADL Disability^†, n = 21,241

		Outcome: ADL or IADL Disability		Outcome: ADL Disability		Outcome: IADL Disability
Method of Categorizing Participants as Functionally Limited	Prevalence (%)	Odds Ratio	95% CI	Odds Ratio	95% CI	Odds Ratio	95% CI
Method 1—limitation in at least one domain (upper body, lower body, dexterity)‡
At least one domain limited	49.0	3.75*	3.20–4.40	2.82*	2.33–3.40	7.67*	5.80–9.89
Method 2—adjusted for presence or absence of limitation in each individual domain
Upper body vs no upper body limitation	25.4	3.45*	3.07–3.88	2.61*	2.27–3.01	5.61*	4.77–6.59
Lower body vs no lower body limitation	41.6	2.36*	2.04–2.72	2.07*	1.75–2.45	3.40*	2.73–4.24
Dexterity vs no dexterity limitation	7.00	1.94*	1.66–2.26	2.00*	1.69–2.37	1.88*	1.58–2.25
Method 3—number of domains (upper body, lower body, dexterity) with at least one limitation‡
Three	28.3	14.43*	11.50–18.09	9.92*	7.64–12.89	30.57*	22.22–42.08
Two	16.4	6.78*	5.68–8.08	4.54*	3.68–5.59	15.03*	11.34–19.93
One	4.30	1.87*	1.56–2.24	1.57*	1.26–1.95	2.80*	2.08–3.76

Notes: ADL = activities of daily living; CI = confidence interval; IADL = instrumental activities of daily living.

^†Adjusted for age, sex, chronic conditions, cognition, self-rated pain, household income, body mass index, smoking status, physical activity, social support availability, and province.

^‡Reference group: no domains limited.

*Significant p < .05.