Demonstrating the robustness of population surveillance data: implications of error rates on demographic and mortality estimates

Table 1 Overview of versions of the BRHP 10-year data showing parameters used, simulated errors and outcomes analysed.

	Random Errors Introduced
	Age	Sex	Deaths	Literacy data	Household Roof material	Analysis
'Gold Standard'	No errors	No errors	No errors	No errors	No errors
1	10% increase in 10% of cases					Population pyramids and mortality rate ratios
2		10% randomised in 10% of cases
3	10% increase in 10% of cases	10% randomised in 10% of cases
4	20% increase in 10% of cases	20% randomised in 10% of cases
5			10% deaths randomly missed			Mortality rate ratios
6		10% randomised in 10% of cases	10% deaths randomly missed
7				10% literacy randomly missing
8					10% of roofs randomised
9	10% increase in 10% of cases	10% randomised in 10% of cases	10% deaths randomly missed	10% literacy randomly missing	10% of roofs randomised

ISSN: 1471-2288