Skip to main content

Some NLM-NCBI services and products are experiencing heavy traffic, which may affect performance and availability. We apologize for the inconvenience and appreciate your patience. For assistance, please contact our Help Desk at info@ncbi.nlm.nih.gov.

. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Environ Res. 2011 Aug 19;111(8):1222–1229. doi: 10.1016/j.envres.2011.08.004

Table 1.

Selected characteristics of the study population from age 1 to 5 years.

Characteristic Percenta (Number with characteristic/Total number analyzed)
Age 1 year Age 2 years Age 3 years Age 5 years
Total number of subjects 559 500 494 341
 Sex Male 48% (268/559) 45% (226/500) 46% (227/494) 44% (150/341)
Female 52% (291/559) 55% (274/500) 54% (267/494) 56% (191/341)
 Ethnicity Dominican 63% (354/559) 62% (309/500) 61% (300/494) 57% (194/341)
African American 37% (205/559) 38% (191/500) 39% (194/494) 43% (147/341)
 Mother receiving Medicaid 75% (415/558) 77% (380/495) 72% (352/492) 72% (243/339)
 Annual income <$10,000 39% (210/532) 35% (166/475) 34% (165/486) 27% (92/336)
$10,000-19,999 34% (179/532) 31% (149/475) 33% (158/486) 35% (116/336)
≥$20,000 27% (143/532) 34% (160/475) 34% (163/486) 38% (128/336)
 Smoker in the household Current 23% (128/558) 19% (97/500) 19% (92/482) 18% (55/299)
Any since birth 32% (176/558) 37% (185/500) 39% (186/482) 41% (124/299)
 Maternal asthma 22% (83/383) 22% (74/338) 22% (73/336) 21% (53/250)
 Doctor says child has asthma 10% (55/558) 15% (74/497) 18% (90/489) 21% (104/341)
 Any wheeze in previous 12 months 38% (212/559) 22% (112/500) 19% (94/494) 22% (94/341)
 Median [range] total IgE [IU/ml] N/A 37 [0-684] (n = 380) 79 [1-2448] (n = 338) 116 [0-1517] (n = 236)
 Positive allergic sensitizationb Cockroach N/A 6.4% (24/373) 10.4% (37/356) 22.5% (53/236)
Mouse N/A 6.9% (26/378) 7.8% (28/360) 10.6% (25/235)
Dust mite N/A 2.4% (9/376) 4.4% (16/360) 9.8% (23/236)
Cat N.A 2.9% (9/306) 5.6% (18/322) 14.6% (34/232)
Any positive N/A 12.7% (53/419) 16.5% (65/394) 30.7% (76/248)
a

Percentages may not add up to 100% because of rounding.

b

Any of the evaluated indoor allergen-specific IgE > 0.35 IU/ml.

HHS Vulnerability Disclosure