Table 1.
The Number of Asthma Prevalence Surveys Sent to School Nurses in Nassau and Suffolk Counties, New York, the Number and Proportion Returned, and the Number and Proportion of Surveys Included in Analyses, 2004, 2006, 2008, and 2010
| Year | 2004a | 2006a | 2008b | 2010b | Total |
|---|---|---|---|---|---|
| Number sent | 752 | 785 | 902 | 888 | 3,327 |
| Number and (%) sent that were returned | 512 (68.1%) | 538 (68.5%) | 552 (61.2%) | 458 (51.6%) | 2,060 (61.9%) |
| Number and (%) returned used in analysis | 450 (87.9%) | 464 (86.3%) | 501 (90.8%) | 392 (85.6%) | 1,807 (87.7%) |
a
Surveys were only sent to public schools that year.
b
Surveys were sent to both public and nonpublic schools that year.