Table 3

Symmetric matrix with the agreement grades estimates () for each cell, with its respective 95% confidence intervals (95% CI).^§‡

CEA

Income quintiles

1^st

2^nd

3^rd

4^th

5^th

Household^†

1^st

2.1

(1.9-2.4)

3.3

(3.0-3.7)

5.6

(5.0-6.3)

53.7

(47.0-61.3)

307.9

(263.6-359.7)

2^nd

2.8

(2. 5-3.0)

2.5

(2.3-2.8)

13.0

(11.6-14.4)

40.0

(35.4-45.1)

3^rd

1.2

(1.1-1.4)

3.4

(3.1-3.7)

5.7

(5.1-6.2)

4^th

5.1

(4.7-5.5)

4.5

(4.2-4.9)

5^th

2.2

(2.0-2.3)

All are significantly different from 1.

^§In the diagonal, represents the Odds Ratio of a household to be categorized in the same quintile by both household and CEA income.

^‡ Out of the diagonal, represents the Odds Ratio of a household to be categorized in the i^th quintile of household income rather than in a different (j^th) quintile of household income, considering that the household, according to the CEA income, belongs to the i^th quintile rather than the j^th quintile.

^†Quintiles of household income defined as the household's monthly per capita income.

CEA = Census Enumeration Area (quintiles of CEA's income defined as the head-of-household's mean nominal monthly income of the CEA).

Gomes et al. Population Health Metrics 2009 7:14   doi:10.1186/1478-7954-7-14