Table 4

The association between household wealth rank tertiles and survey indicators of socioeconomic status

Method 1 : PWR
 Method 2 :Survey + PWR
 Method 3 : Survey only

χ2
 P
 χ2
 P
 χ2
 P
Estimated value of selected non-livestock assets per person
 114.9
 <0.001
 432.5
 <0.001
 445.2
 <0.001
Estimated value of selected livestock assets per person
 31.8
 <0.001
 54.4
 <0.001
 133.2
 <0.001
Land tenure
 11.7
 0.003
 13.0
 0.002
 7.3
 0.026
Quality of house wall material
 73.7
 <0.001
 219.5
 <0.001
 258.8
 <0.001
Quality of toilet facility
 38.5
 <0.001
 67.6
 <0.001
 275.5
 <0.001
Household Electricity
 12.6
 0.002
 3.1
 0.21
 6.3
 0.044
Accessibility of water supply
 10.9
 0.028
 23.6
 <0.001
 19.5
 0.001
Density of household living conditions
 18.5
 <0.001
 12.4
 0.002
 317.9
 <0.001
Proportion of household members receiving a regular income
 101.4
 <0.001
 188.2
 <0.001
 92.5
 <0.001
Educational level of household head
 28.6
 <0.001
 98.8
 <0.001
 155.0
 <0.001
Percentage of household members working age adults
 7.4
 0.02
 9.2
 0.01
 4.3
 0.114
Gender of household head
 64.3
 <0.001
 456.9
 <0.001
 210.6
 <0.001
Second most important household income
 17.2
 <0.001
 53.9
 <0.001
 11.5
 0.003
Regularity of household having a meal consisting of mielie meal alone, bread alone or worse
 46.4
 <0.001
 470.0
 <0.001
 539.4
 <0.001
Car ownership
 82.8
 <0.001
 354.8
 <0.001
 232.1
 <0.001
School attendance score
 23.4
 0.009
 83.6
 <0.001
 48.9
 <0.001

N's for each association vary from 1442–1468 dependent on missing data.

Hargreaves et al. Emerging Themes in Epidemiology 2007 4:4   doi:10.1186/1742-7622-4-4