Kristina K. Hardy
Children's National Medical Center
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Featured researches published by Kristina K. Hardy.
Pediatrics | 2006
Jenny L. Wilson; Rebecka Peebles; Kristina K. Hardy; Iris F. Litt
OBJECTIVE. Pro–eating disorder Web sites are communities of individuals who engage in disordered eating and use the Internet to discuss their activities. Pro-recovery sites, which are less numerous, express a recovery-oriented perspective. This pilot study investigated the awareness and usage of pro–eating disorder Web sites among adolescents with eating disorders and their parents and explored associations with health and quality of life. PATIENTS AND METHODS. This was a cross-sectional study of 698 families of patients (aged 10–22 years) diagnosed with an eating disorder at Stanford between 1997 and 2004. Anonymous surveys were mailed and offered in clinic. Survey content included questions about disease severity, health outcomes, Web site usage, and parental knowledge of eating disorder Web site usage. RESULTS. Surveys were returned by 182 individuals: 76 patients and 106 parents. Parents frequently (52.8%) were aware of pro–eating disorder sites, but an equal number did not know whether their child visited these sites, and only 27.6% had discussed them with their child. Most (62.5%) parents, however, did not know about pro-recovery sites. Forty-one percent of patients visited pro-recovery sites, 35.5% visited pro–eating disorder sites, 25.0% visited both, and 48.7% visited neither. While visiting pro–eating disorder sites, 96.0% reported learning new weight loss or purging techniques. However, 46.4% of pro-recovery site visitors also learned new techniques. Pro–eating disorder site users did not differ from nonusers in health outcomes but reported spending less time on school or schoolwork and had a longer duration of illness. Users of both pro–eating disorder and pro-recovery sites were hospitalized more than users of neither site. CONCLUSIONS. Pro–eating disorder site usage was prevalent among adolescents with eating disorders, yet parents had little knowledge of this. Although use of these sites was not associated with other health outcomes, usage may have a negative impact on quality of life and result in adolescents’ learning about and adopting disordered eating behaviors.
Journal of Pediatric Oncology Nursing | 2011
Kristina K. Hardy; Victoria W. Willard; Melanie J. Bonner
The objective of the current study was to pilot a computerized cognitive training program, Captain’s Log, in a small sample of survivors of childhood cancer. A total of 9 survivors of acute lymphoblastic leukemia and brain tumors with attention and working memory deficits were enrolled in a home-based 12-week cognitive training program. Survivors returned for follow-up assessments postintervention and 3 months later. The intervention was associated with good feasibility and acceptability. Participants exhibited significant increases in working memory and decreases in parent-rated attention problems following the intervention. Findings indicate that home-based, computerized cognitive intervention is a promising intervention for survivors with cognitive late effects; however, further study is warranted with a larger sample.
Psycho-oncology | 2013
Kristina K. Hardy; Victoria W. Willard; Taryn M. Allen; Melanie J. Bonner
Survivors of pediatric brain tumors and acute lymphoblastic leukemia (ALL) are at increased risk for neurocognitive deficits, but few empirically supported treatment options exist. We examined the feasibility and preliminary efficacy of a home‐based, computerized working memory training program, CogmedRM, with survivors of childhood cancer.
Pediatrics | 2010
Rebecka Peebles; Kristina K. Hardy; Jenny L. Wilson; James E. Lock
OBJECTIVE: The objective of this study was to compare the medical severity of adolescents who had eating disorders not otherwise specified (EDNOS) with those who had anorexia nervosa (AN) and bulimia nervosa (BN). METHODS: Medical records of 1310 females aged 8 through 19 years and treated for AN, BN, or EDNOS were retrospectively reviewed. Patients with EDNOS were subcategorized into partial AN (pAN) and partial BN (pBN) when they met all Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria but 1 for AN or BN, respectively. Primary outcome variables were heart rate, systolic blood pressure, temperature, and QTc interval on electrocardiogram. Additional physiologically significant medical complications were also reviewed. RESULTS: A total of 25.2% of females had AN, 12.4% had BN, and 62.4% had EDNOS. The medical severity of patients with EDNOS was intermediate to that of patients with AN and BN in all primary outcomes. Patients with pAN had significantly higher heart rates, systolic blood pressures, and temperatures than those with AN; patients with pBN did not differ significantly from those with BN in any primary outcome variable; however, patients with pAN and pBN differed significantly from each other in all outcome variables. Patients with pBN and BN had longer QTc intervals and higher rates of additional medical complications reported at presentation than other groups. CONCLUSIONS: EDNOS is a medically heterogeneous category with serious physiologic sequelae in children and adolescents. Broadening AN and BN criteria in pediatric patients to include pAN and pBN may prove to be clinically useful.
Psycho-oncology | 2009
Katherine C. Hutchinson; Victoria W. Willard; Kristina K. Hardy; Melanie J. Bonner
Objective: The purpose of the study was to compare the psychological adjustment of caregivers of children with brain tumors who are on‐treatment with caregivers of children who are off‐treatment.
Pediatric Blood & Cancer | 2009
Courtney D. Thornburg; Natalia Dixon; Shelly Burgett; Nicole A. Mortier; William H. Schultz; Sherri A. Zimmerman; Melanie J. Bonner; Kristina K. Hardy; Agustin Calatroni; Russell E. Ware
Hydroxyurea improves laboratory parameters and prevents acute clinical complications of sickle cell anemia (SCA) in children and adults, but its effects on organ function remain incompletely defined.
Journal of Pediatric Psychology | 2008
Melanie J. Bonner; Kristina K. Hardy; Victoria W. Willard; Kelly K. Anthony; Maggie Hood; Sridharan Gururangan
OBJECTIVE To assess social functioning and facial expression recognition skill in survivors of pediatric brain tumors (BT) as compared to children with juvenile rheumatoid arthritis (JRA). METHODS The social functioning of 51 survivors of BT and 31 children with JRA was assessed using a facial expression recognition task, questionnaire ratings of social functioning, and an IQ screener. RESULTS After controlling for estimated IQ, survivors of BT made significantly more errors interpreting adult facial expressions as compared to children with JRA. Additionally, history of therapy and diagnosis age predicted performance on the child portion of the facial recognition task. Finally, survivors of BT demonstrated significantly impaired social functioning across multiple measures when compared to children with JRA. CONCLUSIONS Survivors of pediatric BT showed significant deficits in social functioning as compared to an illness comparison group. Errors in facial expression recognition represent another method for evaluating deficits that contribute to social outcomes.
Psycho-oncology | 2008
Kristina K. Hardy; Melanie J. Bonner; Victoria W. Willard; Melody Watral; Sridharan Gururangan
Objectives: The purpose of the study was to assess the relationship between shunted hydrocephalus and intellectual, memory and academic functioning in a group of survivors of pediatric medulloblastoma.
Journal of Medical Internet Research | 2012
Rebecka Peebles; Jenny L. Wilson; Irish F. Litt; Kristina K. Hardy; James E. Lock; Julia R. Mann; Dina L.G. Borzekowski
Background Much concern has been raised over pro-eating disorder (pro-ED) website communities, but little quantitative research has been conducted on these websites and their users. Objective To examine associations between levels of pro-ED website usage, disordered eating behaviors, and quality of life. Methods We conducted a cross-sectional, Internet-based survey of adult pro-ED website users. Main outcomes were Eating Disorder Examination Questionnaire (EDE-Q) and Eating Disorder Quality of Life (EDQOL) scores. Results We included responses from 1291 participants; 1254 (97.13%) participants were female. Participants had an average age of 22.0 years and a mean body mass index of 22.1 kg/m2; 24.83% (296/1192) were underweight; 20.89% (249/1192) were overweight or obese. Over 70% of participants had purged, binged, or used laxatives to control their weight; only 12.91% (163/1263) were in treatment. Mean EDE-Q scores were above the 90th percentile and mean EDQOL scores were in the severely impaired range. When compared with moderate and light usage, heavy pro-ED website usage was associated with higher EDE-Q global (4.89 vs 4.56 for medium and 4.0 for light usage, P < .001) and EDQOL total scores (1.64 vs 1.45 for medium and 1.25 for light usage, P < .001), and more extreme weight loss behaviors and harmful post-website usage activities. In a multivariate model, the level of pro-ED website usage remained a significant predictor of EDE-Q scores. Conclusions Pro-ED website visitors reported many disordered eating behaviors, although few had been treated. Heavy users reported poorer quality of life and more disordered eating behaviors.
Journal of Pediatric Hematology Oncology | 2008
Kristina K. Hardy; Melanie J. Bonner; Rachel Masi; Katherine C. Hutchinson; Victoria W. Willard; Philip M. Rosoff
Background Although significant progress has been made in identifying long-term sequelae for adult survivors of childhood cancer, comparatively little attention has been paid to the functioning of their parents. In a previous study, we observed that a majority of adult survivors are accompanied to clinic visits by at least 1 parent, suggesting ongoing concern for their childrens health. In the current study, we explore psychologic stressors that characterize this population and might account for this finding. Procedure Responses to measures of psychosocial functioning (ie, Brief Symptom Inventory, Impact on Family Scale, Impact of Events Scale, Parent Experience of Child Illness Scale) were compared between 27 parents of adult survivors (mean age=25.6 y) of pediatric cancer and 28 parents of current pediatric cancer patients (mean age=10.2 y) on, or within 1 year of, active treatment. Results Compared with parents of pediatric cancer patients on treatment, parents of adult survivors demonstrated few significant differences in overall psychologic functioning, posttraumatic stress symptoms, and adjustment to the disease experience. Indeed, the 2 groups differed only in their report of objective and family burden (eg, financial cost, time off from work, less time with family members), and in their levels of anger associated with the illness experience. Conclusions Results suggest that parents who continue to accompany their adult child to clinic may remain psychologically vulnerable many years after the end of treatment, and that the impact of having a child with a life-threatening illness may not diminish even years into the childs survivorship.