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Table 4 Crudea and adjustedb ORs for visiting a health service, by other variables of interest

From: Disease severity determines health-seeking behaviour amongst individuals with influenza-like illness in an internet-based cohort

Variable

Crude ORs (95% CI)a

Fully-adjusted ORs (95% CI)

Likelihood Ratio Test p-value for fully-adjusted model

Influenza circulating

 No

1

1

0.1107

 Yes

1.07 (0.90–1.27)

0.79 (0.59–1.05)

 

Gender

 Male

1

1

0.0003

 Female

1.46 (1.22–1.74)

1.62 (1.23–2.14)

 

Age (years)

 0–18

1

1

0.0387

 19–45

0.48 (0.35–0.67)

0.40 (0.18–0.88)

 

 46–65

0.66 (0.48–0.91)

0.49 (0.22–1.08)

 

  ≥ 66

0.66 (0.45–0.97)

0.63 (0.27–1.47)

 

Highest qualification

 None

1

1

0.1996

 GCSEs/equivalent

1.03 (0.66–1.60)

0.93 (0.47–1.85)

 

 A-Levels/equivalent

0.95 (0.63–1.43)

0.86 (0.44–1.67)

 

 Undergraduate

0.63 (0.42–0.93)

0.62 (0.32–1.21)

 

 Post-graduate

0.60 (0.41–0.87)

0.69 (0.36–1.34)

 

Transport used

 Walk/Bike

1

1

0.1105

 Personal transport

1.54 (1.23–1.92)

1.31 (0.94–1.83)

 

 Public transport

0.99 (0.76–1.28)

0.93 (0.63–1.38)

 

 Other

4.95 (1.63–15.00)

1.76 (0.20–15.33)

 

Children in household

 No

1

1

0.4407

 Yes

1.19 (1.00–1.42)

1.11 (0.85–1.46)

 

Smoking status

 No

1

1

0.0524

 Yes

1.44 (1.10–1.90)

1.47 (1.00–2.17)

 

Flu vaccine

 No

1

1

0.0895

 Yes

1.09 (0.92–1.29)

1.27 (0.96–1.68)

 

Asthma

 No

1

1

0.0167

 Yes

1.86 (1.47–2.36)

1.56 (1.08–2.25)

 

Allergies

 No

1

1

0.3267

 Yes

1.21 (1.02–1.42)

1.13 (0.88–1.46)

 

Diabetes

 No

1

1

0.0007

 Yes

2.17 (1.46–3.22)

2.78 (1.55–5.00)

 

Chronic Lung Disease

 No

1

1

0.1912

 Yes

2.78 (1.53–5.03)

1.72 (0.77–3.84)

 

Heart Disease

 No

1

1

0.2235

 Yes

1.53 (1.05–2.24)

1.42 (0.81–2.47)

 

Renal Disease

 No

1

1

0.2154

 Yes

1.61 (0.51–5.09)

0.31 (0.05–2.14)

 

Immunodeficiency

 No

1

1

0.3764

 Yes

2.57 (1.48–4.47)

1.44 (0.65–3.19)

 

Self-diagnosis

 Cold

1

1

<0.0001

 Flu

8.19 (6.70–9.99)

3.39 (2.38–4.83)

 

Flu Season (year)

 2011–12

0.72 (0.55–0.94)

-

0.0621

 2012–13

1

1

 

 2013–14

0.65 (0.52–0.82)

0.87 (0.63–1.20)

 

 2014–15

1.09 (0.89–1.34)

1.25 (0.95–1.64)

 
  1. aThe crude ORs include all four years of data. Due to the inclusion of health-score, for which data was not collected in the 2011–12 season, the fully-adjusted model excludes 2011–12. Crude analyses excluding 2011–12 showed similar results to the crude analyses presented here (Additional file 6: Table S3). bAdjusted for all other variables and severity indicators
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BMC Infectious Diseases

ISSN: 1471-2334

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