Piotr Brzyski

Health-related quality of life in Polish adolescents with Hymenoptera venom allergy treated with venom immunotherapy

Introduction Venom allergy, though rare, may seriously influence health-related quality of life (HRQoL). There is a paucity of research on HRQoL of adolescents and young adults with Hymenoptera venom allergy. The aim was to assess the level of HRQoL and to evaluate its independent predictors in Polish adolescents and young adults treated with venom immunotherapy. Material and methods A multicenter cross-sectional study based on the Vespid Allergy Quality of Life Questionnaire (VQLQ) adapted for Polish adolescents was used. The study sample included 87 patients (14-21 years) studied at different stages of venom immunotherapy (VIT). Statistical analysis was done with multivariate linear regression. Results Anxiety level was higher in patients with 4th grade of Muellers classification (anaphylactic shock) than in those with 3rd grade (B = 0.84, 95% CI = 0.07-1.61, p = 0.03). Caution increased along with an increase of anxiety of adolescents treated with VIT (B = 0.54, 95% CI = 0.39-0.68, p < 0.01). Level of limitations increased with increasing caution of adolescents (B = 0.63, 95% CI = 0.35-0.91, p < 0.01). Discomfort increased along with a rise of caution of patients (B = 0.38, 95% CI = 0.22-0.55, p < 0.01). Similarly, it increased with an increase of their feeling of limitations (B = 0.37, 95% CI = 0.23-0.51, p < 0.01). The level of discomfort in adolescents treated with VIT was lower in those who were treated with conventional protocol in comparison to those treated with rush or ultra-rush ones (B = –0.47, 95% CI = –0.90 - –0.03, p = 0.04). Conclusions Severity of anaphylactic reaction is an independent determinant of anxiety level in adolescents treated with VIT. The VIT protocol affects HRQoL of treated patients.

Adaptation of Quality of Life Module EORTC QLQ-CR29 for Polish Patients with Rectal Cancer - Initial Assessment of Validity and Raeliability

Heath related quality of life has been an important object of interest in the clinical practice, focused on assessment of treatment effects from patients point of view, with particular emphasis placed on effect of treatment on daily patient functioning. Concept of health-related quality of life needs valid and reliable instruments.The aim of the study was to present the process of validation of a new version of EORTC QLQ-CR29 module in Polish patients suffering from rectal cancer.Material and methods. EORTC QLQ-CR29 module comprises 29 questions, and was adapted to Polish cultural conditions based on EORTC procedure. Data collected from 20 patients were analyzed, their agreement with theoretical and empirical structure was assessed. Convergent and discriminant validity were analyzed with multi trait scaling.Reliability was assessed with Cronbach alpha coefficient. Known group validity was assessed in terms of differences between men and women, and between stoma and non-stoma patients. Exact Mann-Whitney test was used. P values lower than 0.05 were considered significant.Results. Scales built on bases of empirical model of module had higher validity and reliability than those based on theoretical model.There were no significant differences between men and women in health-related quality of life. Significantly higher values were observed in non-stoma patients on body image scale and for leakage of stool item. Reversed relationship was observed in case of abdominal and buttocks pain, as well as embarrassment because of bowel movements.Conclusions. Module CR29 is a valid and reliable tool, which enables standardized measurement of treatment effects, suggested for use as main tool measuring impact of disease itself and applied treatment on health-related quality of life of rectal cancer patients.

The Characteristics of Diabetic Residents in European Nursing Homes: Results from the SHELTER Study

OBJECTIVESnThe objectives of this study were to describe the prevalence of diabetes mellitus (DM) in European nursing homes (NHs), and the health and functional characteristics of diabetic residents (DMR) aged 60 years and older.nnnDESIGNnBetween 2009 and 2011, the Services and Health for Elderly in Long TERm care (SHELTER) project, a 12-month prospective cohort study, was conducted to assess NH residents across different health care systems in 7 European countries and Israel.nnnMETHODSnThe study included 59 NHs in 8 countries with a total of 4037 residents living in or admitted to a NH during the 3-month enrollment period. The multidimensional InterRAI instrument for Long-Term Care Facilities (InterRAI-LTCF) was used to assess health and functional status among residents. Descriptive statistics and linear, ordinal, and logistic regression were used to perform the analyses.nnnRESULTSnWe found a 21.8% prevalence of DM among NH residents. Residents with DM (DMRs) were significantly younger compared with non-DMRs (82.3, SD ± 7.7; 84.6, SD ± 8.4; P < .001). DMRs were more frequently overweight or obese, and presented more often with ischemic heart disease, congestive heart failure, hypertension, and stroke than residents without DM. DMRs also took more drugs, had pressure ulcers (PU) or other wounds more often, and more frequently had urinary incontinence (UI); they also reported worse self-perceived health. DM independently of other factors increased risk of PU occurrence (odds ratio 1.38; 95% confidence interval [CI] 1.02-1.86; P = .036) and decreased probability of higher pain scores (B = -0.28; 95% CI -0.41 to -0.14; P < .001). DM was not associated with ADL dependency, cognitive impairment, and depression in NH residents.nnnCONCLUSIONnPrevalence of DM in European NH residents is comparable to US national NH surveys, and to UK and German NH data based on glucose-level testing. DMRs compared with non-DMRs have more comorbid conditions, and a particularly higher incidence of cardiovascular diseases and obesity, PU, and severe UI. DMRs should be regarded as a specific group of residents who require an interdisciplinary approach in medical and nursing care.

Natural history of Hymenoptera venom allergy in children not treated with immunotherapy.

BACKGROUNDnDifferences in treatment approach still exist for children after systemic sting reactions. In addition, there are still some doubts about when systemic reactors should be treated with venom immunotherapy (VIT).nnnOBJECTIVEnTo determine the rate of sting recurrence and natural history of Hymenoptera venom allergy (HVA) in children not treated with VIT.nnnMETHODSnA total of 219 children diagnosed as having HVA who were not treated with VIT were identified in 3 pediatric allergology centers. Survey by telephone or mail with the use of a standardized questionnaire was conducted. The number of field re-stings, subsequent symptoms, and provided treatment were analyzed.nnnRESULTSnA total of 130 of the 219 patients responded to the survey, for a response rate of 59.4%. During the median follow-up period of 72 months (interquartile range, 52-85 months), 44 children (77% boys) were stung 62 times. Normal reactions were most common, occurring in 27 patients (62%). Severe systemic reactions (SSRs) occurred in 8 (18%) of those who were re-stung. The subsequent reaction was significantly milder (P < 0.001), especially in the case of patients re-stung by the same insect (P < .001). None of the children with prediagnostic large local reactions and negative test results for venom specific IgE developed SSRs after re-sting by the culprit insect (Pxa0= .03). In children with SSRs, median time from diagnosis to re-sting was 2 times longer than that in those with large local reactions and normal reactions (Pxa0= .007).nnnCONCLUSIONSnMost children with HVA not treated with VIT reported milder reactions after a re-sting. Probability of SSR to re-sting increases along with the severity of initial reaction.

Health-related quality of life in older age and a risk of being a victim of domestic violence

Violence against older people remains a taboo topic in Poland, and is still an under-recognized phenomenon. The aim of this study was to examine the risk of different types of domestic violence in older people in relation to their health-related quality of life as measured by chronic conditions, functional limitations, psychological well-being, depressive symptoms and feelings of social isolation. A cross-sectional study using a standardized questionnaire in a simple random sample of 518 older citizens of Krakow was carried out. A multidimensional logistic regression of data showed that such factors as poor assessment of psychological health, number of chronic conditions, suffering from emotional and social loneliness and lack of social support in everyday life significantly increased the risk of being a victim of domestic violence in older citizens of Krakow.

How Factor Analysis Results May Change Due to Country Context

PURPOSEnTo present how factor analysis results of a Practice Environment Scale of the Nursing Work Index (PES-NWI) translation changed due to country context.nnnDESIGNnValidity and reliability analysis of a cross-culturally adapted, Polish translation of the PES-NWI came from a cross-sectional, national survey that included 2,605 registered nurses working in surgical (50.4%) and medical (49.6%) units of 30 Polish hospitals.nnnMETHODSnExploratory factor analysis (EFA) using the principal component analysis (PCA) method with varimax rotation and confirmatory factor analysis (CFA) was used to examine factor structure of the instrument in the Polish context. Zero-order and partial Pearson correlation coefficients were used to establish the range of variance shared by the dimensions of the Polish version. The Cronbachs alpha coefficient determined internal consistency reliability. The internal consistency of the scale was also tested based on Klines criterion.nnnFINDINGSnThe PCA conducted in the sample of Polish nurses extracted six factors, explaining together 56% of the total variance. The varimax rotation, however, restricted results to five factors, explaining 52.7% of the total variance and generating a factor structure closer to that based on previous studies. The CFA model, based on a PCA solution with five nonorthogonal factors, fitted data better than the theoretically driven model.nnnCONCLUSIONSnDimensions of the PES-NWI nurses work environments remain conceptually consistent in Poland, but load differently. Health system or nursing profession factors related to the country context are potential explanations for these differences.nnnCLINICAL RELEVANCEnWhen using a translation of the Practice Environment Scale of the Nursing Work Index-Revised to examine the influences of work environment quality on nursing and patient outcomes, it is important to consider contextual differences when using results to inform policy.

Development of children's hymenoptera venom allergy quality of life scale (CHVAQoLS)

BackgroundVenom allergy is a rare but life-threatening disease and may have a considerable impact on the health-related quality of life (HRQoL) of patients, especially children. This paper presents development of the HRQoL scale for children and adolescents with Hymenoptera venom allergy (HVA).MethodsThe study sample consisted of 71 children, born between 1992 and 2000, who presented with a history of insect sting reaction when referred for consultation in the allergy center of Polish-American Children’s Hospital, Krakow, Poland, during the period from 2000 to 2010. The initial pool of 60 items - divided into 6 domains - was prepared. The items with intercorrelations higher than 0.7 were removed from each domain and then principal component analysis was conducted for each domain separately, to provide a one-dimensional subscale for each domain. Reliability of the subscales was assessed using Cronbach alpha coefficient in terms of Classical Test Theory and with rho coefficient in terms of Item Response Theory. The multidimensionality of the scale was tested using multi-trait scaling.ResultsThree to four items from each domain were subsequently selected to constitute six subscales. Rho coefficients for all the subscales reached 0.8, similar results were achieved with the Cronbach alpha coefficients. Multi-trait method showed that the majority of the items indicated stronger correlations with their own subscales than with other subscales, which proves that our constructed subscales measure different dimensions of HRQoL.ConclusionsThe presented scale comprises high validity and reliability subscales measuring six dimensions of HRQoL related to Hymenoptera venom allergy in children and adolescents. Such information may be useful in everyday clinical practice.

Congruence of the current practices in Hymenoptera venom allergic patients in Poland with EAACI guidelines.

Introduction Venom immunotherapy (VIT) practice is the definitive treatment for patients with potentially fatal allergic reactions to Hymenoptera stings. The aim is assesing compliance of VIT practice in Poland with the current European Academy of Allergy and Clinical Immunology (EAACI) guidance. Material and methods A multicentre study was carried out using a structured questionnaire which was sent by post to all VIT practitioners in Poland. Some questionnaire items were altered, in comparison to original version by adding additional answer options or alowing multiple answer option. The response rate was 100%. The obtained results were compared with the published EAACI guidelines. Results Twenty-six Polish centres took part in the survey. SSIgE and skin prick tests (SPT) are together used as the first line of investigation, whereas confirmatory intradermal tests (IDT) are applied in half of centres. Only a few centres measure baseline serum tryptase levels. The ultra-rush protocol is preferred. Antihistamine pre-medication is routinely practiced. A target dose equal to 100 µg is used in most centres. A 6-week interval between booster doses is the most frequent. Five years is considered as an optimal VIT duration. Before the VIT completion, SSIgE is evaluated in fifty percent of centres, whereas sting challenge is considered by half of responders. Conclusions There are some differences between current practice in Poland and the EAACI recommendations, indicating areas requiring better compliance. Comparision between Poland and the United Kingdom revealed that health service organization and health care funding may play a major role in the provision of allergy services. This may affect the extent to which international guidance may be applied in individual countries. It is worth considering conducting the same survey in other European countries.

Job stress and mortality in older age

ObjectivesThis paper aims to assess the relationship between the determinants of the psychosocial work environment, as expressed in terms of JDC or ERI models, and all-cause mortality in older individuals.Materials and MethodsThe baseline study was conducted on a cohort comprising a random sample of 65-year-old community-dwelling citizens of Kraków, Poland. All of the 727 participants (410 women, 317 men) were interviewed in their households in the period between 2001 and 2003; a structured questionnaire was used regarding their occupational activity history, which included indexes measuring particular dimensions of their psychosocial work environment based on Karasek’s Job Demand-Control model and Siegrist’s Effort-Reward Imbalance model, as well as health-related quality of life and demographic data. Mortality was ascertained by monitoring City Vital Records for 7 years. Analyses were conducted separately for men and women, with the multivariate Cox proportional hazard model.ResultsDuring a 7-year follow-up period, 59 participants (8.1%) died, including 21 women (5.1% of total women) and 38 men (12%) (p < 0.05). Significant differences in the number of deaths occurred regarding disproportion between physical demands and control in men: those with low physical demands and low control died three times more often than those with high control, regardless of the level of demands. The multivariate Cox proportional hazard model showed that significantly higher risk of death was observed only in men with low physical demands and low control, compared to those with low physical demands and high control (Exp(B) = 4.65, 95% CI: 1.64–13.2).ConclusionsObserved differences in mortality patterns are similar to the patterns of relationships observed in health-related quality of life (HRQoL) level at the beginning of old age; however, the relationship between efforts and rewards or demands and control and mortality was not fully confirmed.

Simplification of intradermal skin testing in Hymenoptera venom allergic children.

BACKGROUNDnThe direct comparison between children and adults with Hymenoptera venom anaphylaxis (HVA) has never been extensively reported. Severe HVA with IgE-documented mechanism is the recommendation for venom immunotherapy, regardless of age.nnnOBJECTIVEnTo determine the differences in the basic diagnostic profile between children and adults with severe HVA and its practical implications.nnnMETHODSnWe reviewed the medical records of 91 children and 121 adults.nnnRESULTSnBee venom allergy was exposure dependent, regardless of age (P < .001). Atopy was more common in children (Pxa0= .01), whereas cardiovascular comorbidities were present almost exclusively in adults (Pxa0= .001). In the bee venom allergic group, specific IgE levels were significantly higher in children (29.5 kUA/L; interquartile range, 11.30-66.30 kUA/L) compared with adults (5.10 kUA/L; interquartile range, 2.03-8.30 kUA/L) (Pxa0< .001). Specific IgE levels for culprit insect venom were higher in bee venom allergic children compared with the wasp venom allergic children (P < .001). In adults, intradermal tests revealed higher sensitivity, accompanied by larger area of skin reactions, regardless of type of venom. At concentrations lower than 0.1 μg/mL, 16% of wasp venom allergic children and 39% of bee venom allergic children had positive intradermal test results. The median tryptase level was significantly higher in adults than in children for the entire study group (Pxa0= .002), as well as in bee (Pxa0= .002) and wasp venom allergic groups (Pxa0= .049).nnnCONCLUSIONnThe basic diagnostic profile in severe HVA reactors is age dependent. Lower skin test reactivity to culprit venom in children may have practical application in starting the intradermal test procedure with higher venom concentrations.