Table 2 Logistic regression results of unplanned medical visits

Tobacco use

Never-smoker

(Ref)

(Ref)

(Ref)

Former smoker

1.24

(1.20–1.29)

<.001

Current smoker

1.23

(1.17–1.29)

<.001

BMI

1.00

(1.00–1.00)

.090

Race

White

(Ref)

(Ref)

(Ref)

Non-white

1.75

(1.65–1.85)

<.001

Sex

Male

(Ref)

(Ref)

(Ref)

Female

1.20

<.001

State

Minnesota

(Ref)

(Ref)

(Ref)

North Dakota

1.29

(1.24–1.34)

<.001

South Dakota

1.06

(1.02–1.10)

.007