Skip to main content

Advertisement

Table 2 Predictors of the number of secondary cases in the household, offset against the number of potentially exposed household members (participant primay case, 177 household ILI events)

From: Household transmission of respiratory viruses – assessment of viral, individual and household characteristics in a population study of healthy Australian adults

Explanatory variable SHAP for group (# episodes) Multivariate Poisson regression
IRR (95% CI) p
Virus Group (cf none detected) None 0.129 (95) 1.00 (def) -
Picornavirus 0.143 (40) 0.937 (0.475, 1.85) 0.851
Influenza 0.238 (17) 2.11 (0.992, 4.49) 0.052
Coronavirus 0.357 (6) 1.80 (0.670, 4.85) 0.243
Other 0.000 (8) - -
Sex (cf male) Male 0.085 (69) 1.00 (def) -
Female 0.172 (108) 2.12 (1.10, 4.09) 0.025
Smoking (cf not current smoker) Not current smoker 0.136 (161) 1.00 (def) -
Current smoker 0.250 (12) 1.91 (0.738, 4.94) 0.183
Age (cf 18–24 years) 18-24 years 0.106 (47) Not included -
25-34 years 0.115 (28) Not included -
35-44 years 0.235 (37) Not included -
45-54 years 0.095 (36) Not included -
55-64 years 0.100 (29) Not included -
Household size (cf size 2) 2 0.219 (64) Not included -
3 0.068 (44) Not included -
4 0.123 (46) Not included -
5 0.206 (17) Not included -
6 0.200 (3) Not included -
7 0.000 (3) Not included -
Presence of child (cf no children in house) No children in house 0.118 (123) 1.00 (def) -
At least one child in house 0.167 (54) 1.51 (0.864, 2.65) 0.147