Table 2 Empirical estimates of contact numbers and meeting durations, by contact type. Only contacts aged 12+ years were included in the analysis. Underlining indicates figures used directly as model input parameters.

From: An explanation for the low proportion of tuberculosis that results from transmission between household and known social contacts

Contact type Mean contacts/person/day Variance in contacts/person/day Mean meeting duration (minutes) Mean meeting time/person/day (hours)
Household   2.46 2.24 415 17.0
Repeated Daily 0.62 1.41 263 2.72
Weekly-monthly 0.98 1.93 197 3.22
Overall 1.60 2.66 225 6.00
Proportion of repeated contacts that are daily 0.387  
Non-repeated Non-repeated close 0.146 0.435 132 0.32
Non-repeated casual 7.67 95.0 182 23.3
Overall 8.01 95.7 181 24.2
Proportion of non-repeated contacts that are non-repeated close 0.0187  
Total   12.07 110 235 47.2