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Study Detail

Klinnert, M. D., Liu, A. H., Pearson, M. R., Ellison, M. C., Budhiraja, N., & Robinson, J. L. (2005). Short-term impact of a randomized multifaceted intervention for wheezing infants in low-income families. Archives of Pediatrics & Adolescent Medicine, 159(1), 75-82.

Program(s) Reviewed: Childhood Asthma Prevention Study (CAPS)

Study Screening Details

Screening DecisionScreening Conclusion
Study Passes ScreensEligible for Review

Study Design Details

RatingDesignAttritionBaseline EquivalenceReassignmentConfounding Factors
HighRandomized controlled trialLowNot applicableNoneNone

High rating applies to most outcomes. Medical record outcomes receive a low rating because of high attrition and failure to demonstrate baseline equivalence.

Study Characteristics

Study Participants

Participants (infants and their families) were recruited from local hospitals and clinics in the Denver, Colorado, area and assigned randomly to either the intervention or the comparison group. Initially 181 infants were randomly assigned, 90 to the treatment group and 91 to the comparison group. At baseline, the study groups were split among European Americans (22 percent treatment, 21 percent control), African American (23 percent treatment, 22 percent control), U.S.-born Hispanic (33 percent treatment, 31 percent control) and foreign-born Hispanic (22 percent treatment, 20 percent control). Approximately half of each group had incomes less than $12,000 per year. Participants were followed for one year after baseline data were collected.


The study was conducted in Denver, Colorado.

Home Visiting Services

The intervention included home visits conducted by specially trained nurses. The intervention began when infants were from 9 to 24 months old and continued for 12 months. Participants received approximately 15 visits (or telephone calls) by a public health nurse. Each visit lasted an average of 53 minutes.

Comparison Condition

Comparison group members received an educational video at the baseline interview that described risk factors for developing asthma and actions that caregivers can take to mediate the risks.

Staff Characteristics and Training

The nurses in this study had bachelor’s of science degrees in nursing and had experience in community outreach.

Funding Source

National Institute of Allergy and Infectious Diseases; National Institute of Health/National Center for Research Resources.

Author Affiliation

Mary D. Klinnert, a study author, is a developer of this program model.


See also…