Table 6 Post-disaster odds ratios for patient delay (univariate regressions)

Hospital^a

 Watanabe Hospital

N/A

 Minamisoma Municipal General Hospital

N/A

Distance from hospital

0.96 (0.89–1.05)

Referral from other medical providers

 No

Ref.

 Yes

1.58 (0.64–3.89)

Days from first medical consultation to first examination

1.00 (1.00–1.01)

Residential area^b

 Non-evacuation zone of So-so District

Ref.

 Voluntary evacuation zone

1.26 (0.36–4.40)

 Mandatory evacuation zone

0.92 (0.16–5.21)

Age

 –50]

Ref.

 (50–65]

1.50 (0.39–5.75)

 (65–

1.24 (0.34–4.49)

Engaged in a full-time job

 No

Ref.

 Yes

1.47 (0.54–4.01)

Number of cohabitant family members

 0–1

Ref.

 2–3

0.68 (0.26–1.77)

 More than 4

0.51 (0.13–2.09)

Living with a partner

 No

Ref.

 Yes

1.29 (0.51–3.27)

Living with children

 No

Ref.

 Yes

0.58 (0.24–1.40)

Lump

 No

Ref.

 Yes

0.19 (0.03–1.10)

Hormone receptor

 Positive

Ref.

 Negative

0.69 (0.15–3.09)

Stage

 0

N/A

 1

N/A

 2

N/A

 3 or 4

N/A

ASA physical classification system

 Normal healthy patient

Ref.

 Patient with mild systemic disease

1.27 (0.49–3.29)

 Patient with severe systemic disease

3.00 (0.72–12.55)

Body mass index (kg/m²)

 –25]

Ref.

 (25–30]

1.71 (0.67–4.39)

 (30–

0.53 (0.06–4.87)

History of benign breast disease

 No

Ref.

 Yes

1.19 (0.20–6.86)

Undertook mammography screening within past two years

 No

Ref.

 Yes

0.76 (0.19–3.02)

Family history of any cancer

 No

Ref.

 Yes

0.38 (0.15–0.95)*

Air dose rate [μSv/h]

0.71 (0.05–10.03)