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Greater Number of Perceived Barriers to Hydroxyurea Associated With Poorer Health-Related Quality of Life in Youth With Sickle Cell Disease

key information

source: Pediatric Blood & Cancer

year: 2019

authors: Arlene Smaldone, Deepa Manwani, Nancy S. Green

summary/abstract:

Background:
Despite medical benefits, hydroxyurea adherence in adolescents is often poor. As part of a baseline assessment of 28 youth (10-18 years) parent dyads who participated in a 6-month feasibility trial to improve hydroxyurea adherence, we measured the relationship between greater barriers to adherence and health-related quality of life (HRQL) from youth and parent perspectives.

Procedure:
Barriers were measured using the Adolescent and Parent Medication Barriers Scales with nine hydroxyurea items added. Barriers reported by >=25% of the sample were considered common. Generic and disease-specific HRQL were measured by PedsQL and PedsQL Sickle Cell Disease modules. Data were analyzed using descriptive statistics, Cronbach alpha, Spearman correlation coefficients, and paired t tests.

Results:
Fifty-six subjects (28 dyads) participated. Youth reported greater barriers compared with parents (5.0 ± 3.9 and 3.5 ± 3.2; P = 0.03), with >80% of respondents reporting >=1 barriers. Twelve barriers were reported by >=25% of adolescents, whereas six were reported by >=25% of parents. Of these, only two were common to both dyad members. Approximately one-third of youth had generic and disease-specific HRQL scores that fell at or below cutoff scores, suggesting being at risk for impaired HRQL. Greater barriers were inversely associated with poorer generic (parent r = -0.43, P = 0.03; youth r = -0.44, P < 0.001) and disease-specific HRQL (parent r = -0.53, P = 0.005; youth r = -0.53, P < 0.001).

Conclusions:
Hydroxyurea barriers were frequently reported but differed by dyad members’ perspective. Greater barriers were associated with poorer generic and disease-specific HRQL. To reduce barriers to hydroxyurea in youth with sickle cell disease, perspectives of both dyad members should be addressed.

organization: Columbia University School of Nursing, USA; Columbia University Medical Center, USA; Albert Einstein College of Medicine, USA

DOI: 10.1002/pbc.27740

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