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Table 7 Summary of Poisson regression analysis using infection induced asthma as the dependent variable

From: Effect of household air pollution due to solid fuel combustion on childhood respiratory diseases in a semi urban population in Sri Lanka

Variable

Regression Coefficient

Std. Error of regression coefficient

Adjusted Relative Risk

(95% CI)

Intercept

−0.098

0.5282

 

High exposurea

0.572

0.2510

1.772 (1.098–2.949)

Father’s education (up to O/L)b

−0.494

0.2677

0.610 (0.362–1.037)

Mother’s education (up to O/L)c

0.778

0.2774

2.177 (1.276–3.803)

Family income (< SLR 20,000)d

−0.196

0.2701

0.822 (0.475–1.374)

Duration of cooking (< 2.5 h)e

−0.343

0.2277

0.710 (0.452–1.106)

Having a chimneyf

−0.294

0.2212

0.745 (0.482–1.150)

Having a siblingg

−0.202

0.2422

1.224 (0.764–1.982)

  1. aReference group is low exposure group using LPG and electricity for cooking
  2. bReference group is father’s education above ordinary level (O/L)
  3. cReference group is mother’s education above ordinary level (O/L)
  4. dReference group is having income of Sri Lanka Rupees (SLR) 20,000 or more
  5. eReference group is the households where they spent 2.5 h or more for cooking
  6. fReference group is households without a chimney
  7. gReference group is the children without a sibling