A study protocol to evaluate the relationship between outdoor air pollution and pregnancy outcomes

BMC Public Health

Table 1 Target population by administrative area

Administrative area	Population*¹	Estimated number of pregnants*²
Alcácer do Sal	14 287	469
Grândola	14 901	513
Odemira	26 106	775
Santiago do Cacém	31 105	990
Sines	13 577	549
Total	99 976	3 295

^*1Census 2001
^*2Estimated from crude birthrates (‰) by Administrative area - National Institute of Statistics (INE), Demographic Indicators

ISSN: 1471-2458