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Table 5 Dose–response relationship between number of cigarettes smoked per day and severity of diarrhoeal disease (multivariate analysis)

From: Diarrhoea and smoking: an analysis of decades of observational data from Bangladesh

Cigarettes smoked

Unadjusted; OR (95 % CI) p

Adjusted; OR (95 % CI) p

Non-smokers

1.00

1.00

1-9 sticks/day

0.89 (0.82-0.98) 0.024

0.87 (0.79-0.95) 0.005

10-19 sticks/day

0.97 (0.88-1.08) 0.876

0.98 (0.87-1.09) 0.467

≥20 sticks/day

0.88 (0.74-1.06) 0.736

0.93 (0.77-1.13) 0.456

  1. All analyses limited among male; OR, Odds ratio; CI, Confidence interval; unadjusted and adjusted (models) p value was computed by ordinal logistic regression
  2. Dependent variable: disease severity (0 = mild, 1 = moderately severe, 2 = severe, 3 = extremely severe)
  3. Main exposure: Number of cigarettes smoked (0 = non-smokers, 1 = 1-9 sticks/day, 2 = 10-19 sticks/day, 3 = ≥20 sticks/day)
  4. Adjusting confounder/modifiers: Age (0 = 15-30 years), wealth index (0 = rich), illiteracy (0 = literacy), Vibrio cholerae (0 = no), Shigella spp. (0 = no)
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BMC Public Health

ISSN: 1471-2458

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