Pneumonia and poverty: a prospective population-based study among children in Brazil

BMC Infectious Diseases

Table 1 Incidence of pneumonia confirmed by chest X-ray based on socioeconomic indicator.

Socioeconomic status^a	Mean annual cases	Population^b(< 3 years old)	Incidence^c per 100 000 (95% CI)
High	125.5	7665	1637.3 (1383.0-1926.0)
Intermediate	339.5	10 976	3093.1 (2790.0-3420.0)
Poor	490.5	14 507	3381.1 (3103.0-3677.0)
Very poor	978.5	20 279	4825.2 (4542.0-5122.0)
Total	1934.0	53 427	3619.9 (3464.0-3781.0)

^a The following census/IBGE variables were used to built up the socioeconomic indicator: head of household earning more than 20 minimum wages and with more than 15 years of schooling and head of household income
^b Population at risk obtained from census
^c Mean annual incidence rate.
Goiânia, Brazil, May/2007-May/2009

ISSN: 1471-2334