Table 3 Significant HRSN interaction effects for index 1 ED visit and ≥ 2 ED visits. Interaction models test primary predictor (HRSN) with each covariate

Outcome: 1 ED Visit Interaction Model Terms

HRSN ≥ 1 (ref: none)

1.17

0.72–1.90

Age Category (ref: age 65–74)

 Age 75–84*

0.89

0.573–1.379

 Age 85+*

0.91

0.55–1.51

Chronic Conditions (ref: 0–1)

 Chronic Conditions 2–3*

1.04

0.651–1.668

 Chronic Conditions 3+*

1.22

0.700–2.121

Education (ref: high school or less)

 Education: Some College*

1.03

0.651–1.642

 Education: College Degree*

1.32

0.66–2.64

Beneficiary Ethnicity (ref: non-Hispanic Ethnicity)

 Hispanic Ethnicity†

3.06

1.02–9.18

Outcome: ≥2 ED visits Interaction Model Terms

HRSN ≥ 1(ref: no HRSN)

1.962

0.96–4.0

Age Category (ref: age 65–74)

 Age 75–84*

0.89

0.51–1.55

 Age 85+*

1.18

0.65–2.15

Beneficiary Race (ref: White Race Beneficiaries)

 Beneficiary Black Race*

1.39

0.48–4.03

 Beneficiary Other Race*

1.98

0.61–6.47

Chronic Conditions (ref: 0–1)

 Chronic Conditions 2–3*

0.79

0.42–1.47

 Chronic Conditions 3+*

0.56

0.31–1.01

Education (ref: high school or less)

 Education: Some College*

1.07

0.56–2.04

 Education: College Degree*

2.18

0.90–5.30