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Table 2 Univariate associations for IID symptom severity and sickness absence outcomes (IID2 study 2008–9)

From: Socioeconomic status is associated with symptom severity and sickness absence in people with infectious intestinal disease in the UK

  Severe symptoms versus mild or moderate symptoms combined
OR (95%CI)
Sickness absence versus no sickness absence
OR (95%CI)a
  Cases with complete data ≥5 years of age
(n = 1164)
Cases with complete data school/working age
(n = 818)
Age group (years)
 5–14 reference  
 15–24 2.88 (1.59–5.31)  
 25–44 0.99 (0.68–1.45)  
 45–64 0.70 (0.49–1.01)  
 65+ 0.60 (0.41–0.89)  
Age (years)   0.98 (0.97–0.99)
Sex
 Female reference reference
 Male 0.92 (0.74–1.14) 0.94 (0.70–1.25)
Ethnicity
 White reference reference
 Non-White 2.27 (1.28–4.10) 3.13 (1.38–8.41)
NS-SEC
 Managerial/professional reference reference
 Intermediate 1.21 (0.92–1.61) 1.13 (0.78–1.66)
 Routine/manual 2.18 (1.67–2.86) 1.77 (1.22–2.58)
Residence
 Urban reference reference
 Rural 0.82 (0.65–1.03) 0.98 (0.71–1.34)
Travelled before illness
 No reference reference
 Yes 1.21 (0.88–1.66) 0.66 (0.44–0.99)
Symptom severity
 Mild   reference
 Moderate   3.88 (2.75–5.51)
 Severe   5.99 (4.07–8.95)
  1. CI confidence interval, IID infectious intestinal disease, NS-SEC National Statistics Socioeconomic Classification, OR odds ratio
  2. aSince the absence outcome was common, the odds ratios should not be interpreted as risk ratios