Table 5.

Models for logistic regression of factors associated with ED revisit within 30 days after initial ED visit (N=5930)

	ED revisit
	Bivariate	Model 1	Model 2	Model 3
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Individual factors
Demographics and health
Age	0.99 (0.98 to 1.01)
Gender
Female	Ref.
Male	1.12 (0.98 to 1.27)
No of chronic diseases	1.07 (1.04 to 1.10)*	1.07 (1.04 to 1.10)*	1.02 (0.98 to 1.06)	1.02 (0.98 to 1.06)
Home help and healthcare use
Home help
No	Ref		Ref	Ref
Instrumental services	0.99 (0.75 to 1.32)		0.99 (0.74 to 1.32)	0.97 (0.73 to 1.29)
Personal care	1.13 (0.84 to 1.53)		1.13 (0.84 to 1.53)	1.15 (0.85 to 1.55)
Instrumental and personal care	1.33 (1.15 to 1.55)*		1.31 (1.13 to 1.53)*	1.30 (1.12 to 1.51)*
No of primary care visits	1.01 (1.01 to 1.02)*		1.00 (1.00 to 1.01)	1.00 (1.00 to 1.01)
No of specialist care visits	1.00 (0.99 to 1.00)
No of hospital admissions	1.19 (1.13 to 1.26)*		1.15 (1.08 to 1.23)*	1.15 (1.08 to 1.23)*
Disposition at index ED visit
Discharged	Ref		Ref	Ref
Hospital admission	0.73 (0.65 to 0.83)*		0.69 (0.61 to 0.79)*	0.71 (0.62 to 0.81)*
Contextual factors
Annual social care cost per person 80+	1.00 (1.00 to 1.00)
Response, trust and safety	0.98 (0.97 to 1.00)
Influence and adequate time	0.99 (0.99 to 1.00)
Median days in residential care	1.00 (0.99 to 1.00)
Propotion of 80+ in the population	0.99 (0.92 to 1.06)
Distance to the nearest ED	0.99 (0.99 to 0.99)*			0.99 (0.99 to 1.00)
Deviance (−2LL)		5718.922	5650.039	5644.775
Cox and Snell R2CS		0.004	0.015	0.016
NagelkerkeR2N		0.006	0.025	0.026

*Significant on values estimated from 95% CI.

ED, emergency department.