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  • SAGE Publications  (18)
  • 2010-2014  (18)
  • 1
    Online Resource
    Online Resource
    ‘Pick Any’ Measures Contaminate Brand Image Studies
    SAGE Publications ; 2012
    In:  International Journal of Market Research Vol. 54, No. 6 ( 2012-11), p. 821-834
    Details
    In: International Journal of Market Research, SAGE Publications, Vol. 54, No. 6 ( 2012-11), p. 821-834
    Abstract: Brand image measures using the typical ‘pick any’ answer format have been shown to be unstable (Rungie et al. 2005). In the present study, we find that these poor stability results are mainly caused by the pick-any measure itself because it allows consumers to evade reporting true associations. Using a forcedchoice binary measure, we find that stable brand attribute associations are in fact present with much higher incidence (70%), thus outperforming both the measures predominantly used in industry (pick-any, 41%) and academia (7-point scale measure, 59%). Under simulated optimal conditions, the forced-choice binary measure leads to 90% stability of brand-attribute associations and is therefore recommended as the optimal answer format for brand image studies.
    Type of Medium: Online Resource
    ISSN: 1470-7853 , 2515-2173
    URL: Article
    DOI: 10.2501/IJMR-54-6-821-834
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 2066720-6
    SSG: 3,2
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  • 2
    Online Resource
    Online Resource
    Gingival Tissue Transcriptomes Identify Distinct Periodontitis Phenotypes
    SAGE Publications ; 2014
    In:  Journal of Dental Research Vol. 93, No. 5 ( 2014-05), p. 459-468
    Details
    In: Journal of Dental Research, SAGE Publications, Vol. 93, No. 5 ( 2014-05), p. 459-468
    Abstract: The currently recognized principal forms of periodontitis—chronic and aggressive—lack an unequivocal, pathobiology-based foundation. We explored whether gingival tissue transcriptomes can serve as the basis for an alternative classification of periodontitis. We used cross-sectional whole-genome gene expression data from 241 gingival tissue biopsies obtained from sites with periodontal pathology in 120 systemically healthy nonsmokers with periodontitis, with available data on clinical periodontal status, subgingival microbial profiles, and serum IgG antibodies to periodontal microbiota. Adjusted model-based clustering of transcriptomic data using finite mixtures generated two distinct clusters of patients that did not align with the current classification of chronic and aggressive periodontitis. Differential expression profiles primarily related to cell proliferation in cluster 1 and to lymphocyte activation and unfolded protein responses in cluster 2. Patients in the two clusters did not differ with respect to age but presented with distinct phenotypes (statistically significantly different whole-mouth clinical measures of extent/severity, subgingival microbial burden by several species, and selected serum antibody responses). Patients in cluster 2 showed more extensive/severe disease and were more often male. The findings suggest that distinct gene expression signatures in pathologic gingival tissues translate into phenotypic differences and can provide a basis for a novel classification.
    Type of Medium: Online Resource
    ISSN: 0022-0345 , 1544-0591
    URL: Article
    DOI: 10.1177/0022034514527288
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2057074-0
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  • 3
    Online Resource
    Online Resource
    Including Don't know answer options in brand image surveys improves data quality
    SAGE Publications ; 2014
    In:  International Journal of Market Research Vol. 56, No. 1 ( 2014-01), p. 33-50
    Details
    In: International Journal of Market Research, SAGE Publications, Vol. 56, No. 1 ( 2014-01), p. 33-50
    Abstract: How do respondents use the Don't know answer option in surveys? We investigate this question in the context of brand image measurement, using an experimental design with about 2,000 respondents and, for the first time, considering a range of commonly used answer formats. Results indicate that Don't know options are primarily used when respondents genuinely cannot answer the question, as opposed to representing a quick, low-effort option to complete a survey. Two practical conclusions arise from this study: (1) a Don't know option should be offered in cases where it is expected that some respondents may be unfamiliar with some brands under study; and (2) answer formats without a midpoint should be used in brand image studies because midpoints can either be falsely misinterpreted as an alternative to ticking the Don't know option, or used as an avenue for respondent satisficing.
    Type of Medium: Online Resource
    ISSN: 1470-7853 , 2515-2173
    URL: Article
    DOI: 10.2501/IJMR-2013-043
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2066720-6
    SSG: 3,2
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  • 4
    Online Resource
    Online Resource
    Early Predictors of Health-Related Quality of Life Outcomes in Polytrauma Patients with Spine Injuries: A Level 1 Trauma Center Study
    SAGE Publications ; 2014
    In:  Global Spine Journal Vol. 4, No. 1 ( 2014-02), p. 021-032
    Details
    In: Global Spine Journal, SAGE Publications, Vol. 4, No. 1 ( 2014-02), p. 021-032
    Abstract: Retrospective review on clinical-quality trauma registry prospective data. Objective To identify early predictors of suboptimal health status in polytrauma patients with spine injuries. Methods A retrospective review on a prospective cohort was performed on spine-injured polytrauma patients with successful discharge from May 2009 to January 2011. The Short Form 12-Questionnaire Health Survey (SF-12) was used in the health status assessment of these patients. Univariate and multivariate logistic regression models were applied to investigate the effects of the Injury Severity Score, age, blood sugar level, vital signs, brain trauma severity, comorbidities, coagulation profile, spine trauma-related neurologic status, and spine injury characteristics of the patients. Results The SF-12 had a 52.3% completion rate from 915 patients. The patients who completed the SF-12 were younger, and there were fewer patients with severe spinal cord injuries (American Spinal Injury Association classifications A, B, and C). Other comparison parameters were satisfactorily matched. Multivariate logistic regression revealed five early predictive factors with statistical significance ( p ≤ 0.05). They were (1) tachycardia (odds ratio [OR] = 1.88; confidence interval [CI]  = 1.11 to 3.19), (2) hyperglycemia (OR = 2.65; CI = 1.51 to 4.65), (3) multiple chronic comorbidities (OR = 2.98; CI = 1.68 to 5.26), and (4) thoracic spine injuries (OR = 1.54; CI = 1.01 to 2.37). There were no independent early predictive factors identified for suboptimal mental health-related qualify of life outcomes. Conclusion Early independent risk factors predictive of suboptimal physical health status identified in a level 1 trauma center in polytrauma patients with spine injuries were tachycardia, hyperglycemia, multiple chronic medical comorbidities, and thoracic spine injuries. Early spine trauma risk factors were shown not to predict suboptimal mental health status outcomes.
    Type of Medium: Online Resource
    ISSN: 2192-5682 , 2192-5690
    URL: Article
    DOI: 10.1055/s-0033-1358617
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2648287-3
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  • 5
    Online Resource
    Online Resource
    Required Sample Sizes for Data-Driven Market Segmentation Analyses in Tourism
    SAGE Publications ; 2014
    In:  Journal of Travel Research Vol. 53, No. 3 ( 2014-05), p. 296-306
    Details
    In: Journal of Travel Research, SAGE Publications, Vol. 53, No. 3 ( 2014-05), p. 296-306
    Abstract: Data analysts in industry and academia make heavy use of market segmentation analysis to develop tourism knowledge and select commercially attractive target segments. Within academic research alone, approximately 5% of published articles use market segmentation. However, the validity of data-driven market segmentation analyses depends on having available a sample of adequate size. Moreover, no guidance exists for determining what an adequate sample size is. In the present simulation study using artificial data of known structure, the impact of the difficulty of the segmentation task on the required sample size is analyzed in dependence of the number of variables in the segmentation base. Under all simulated data circumstances, a sample size of 70 times the number of variables proves to be adequate. This finding is of substantial practical importance because it will provide guidance to data analysts in academia and industry who wish to conduct reliable and valid segmentation studies.
    Type of Medium: Online Resource
    ISSN: 0047-2875 , 1552-6763
    URL: Article
    DOI: 10.1177/0047287513496475
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
    detail.hit.zdb_id: 2036634-6
    SSG: 14
    SSG: 3,2
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  • 6
    Online Resource
    Online Resource
    The Associations Between OPRM 1 and COMT Genotypes and Postoperative Pain, Opioid Use, and Opioid-Induced Sedation
    SAGE Publications ; 2013
    In:  Biological Research For Nursing Vol. 15, No. 3 ( 2013-07), p. 309-317
    Details
    In: Biological Research For Nursing, SAGE Publications, Vol. 15, No. 3 ( 2013-07), p. 309-317
    Abstract: Previous studies have associated mu-opioid receptor ( OPRM1) genotype with pain and analgesia responses in postoperative and patient populations. This study investigates the role of catechol-O-methyltransferase ( COMT) and OPRM1 genotypes in acute postoperative pain scores, opioid use, and opioid-induced sedation after surgical procedures for orthopedic trauma in an otherwise healthy patient population. Verbal pain/sedation scores, opioid use, and physiologic responses in the immediate postoperative period were examined for association with genetic variants in Caucasians genotyped for OPRM1 single nucleotide polymorphisms (SNPs) A118G and C17T and COMT SNPs. The OPRM1 A118G genotype was associated with patients’ postoperative Numerical Pain scale (NPS) ratings at 15 min in the postanesthesia care unit (PACU) ( p = .01) and patients' sedation scores at 15 min in the PACU ( p = .02). COMT genotype (rs4818) was associated with opioid consumption in the first 45 min in the PACU ( p = .04). NPS ratings at 45 min were also higher in the group of patients with A/A genotype of rs4680 than in patients with the other two genotypes at this SNP ( p = .03). Our haplotype trend analysis identified a COMT haplotype “GCGG” significantly associated with NPS at 15 min ( p = .0013), amount of opioids consumed in the first 45 min ( p = .0024), and heart rate at 45 min in the PACU ( p = .017). The results indicate that genetic variations in COMT contribute to the acute postoperative pain and analgesia responses and physiologic responses in this group of otherwise healthy postoperative orthopedic trauma patients.
    Type of Medium: Online Resource
    ISSN: 1099-8004 , 1552-4175
    URL: Article
    DOI: 10.1177/1099800411436171
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2070503-7
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  • 7
    Online Resource
    Online Resource
    Validly Measuring Destination Image in Survey Studies
    SAGE Publications ; 2013
    In:  Journal of Travel Research Vol. 52, No. 1 ( 2013-01), p. 3-14
    Details
    In: Journal of Travel Research, SAGE Publications, Vol. 52, No. 1 ( 2013-01), p. 3-14
    Abstract: Destination image is among the most frequently measured constructs in empirical survey research. Academic tourism researchers tend to use multi-category scales, often referring to them as “Likert scales,” while industry typically uses “pick-any” measures. But which leads to results that are more valid? Findings from a large-scale experimental study show that a “forced-choice full binary” format (where respondents have to tick “yes” and “no” for each destination-attribute combination) performs better than both current preferred formats in academic and applied studies.
    Type of Medium: Online Resource
    ISSN: 0047-2875 , 1552-6763
    URL: Article
    DOI: 10.1177/0047287512457267
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2036634-6
    SSG: 14
    SSG: 3,2
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  • 8
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    Online Resource
    Inception of an Australian Spine Trauma Registry: the Minimum Dataset
    SAGE Publications ; 2012
    In:  Global Spine Journal Vol. 2, No. 2 ( 2012-06), p. 071-078
    Details
    In: Global Spine Journal, SAGE Publications, Vol. 2, No. 2 ( 2012-06), p. 071-078
    Abstract: The establishment of a spine trauma registry collecting both spine column and spinal cord data should improve the evidential basis for clinical decisions. This is a report on the pilot of a spine trauma registry including development of a minimum dataset. Methods A minimum dataset consisting of 56 data items was created using the modified Delphi technique. A pilot study was performed on 104 consecutive spine trauma patients recruited by the Victorian Orthopaedic Trauma Outcomes Registry (VOTOR). Data analysis and collection methodology were reviewed to determine its feasibility. Results Minimum dataset collection aided by a dataset dictionary was uncomplicated (average of 5 minutes per patient). Data analysis revealed three significant findings: (1) a peak in the 40 to 60 years age group; (2) premorbid functional independence in the majority of patients; and (3) significant proportion being on antiplatelet or anticoagulation medications. Of the 141 traumatic spine fractures, the thoracolumbar segment was the most frequent site of injury. Most were neurologically intact (89%). Our study group had satisfactory 6-month patient-reported outcomes. Conclusion The minimum dataset had high completion rates, was practical and feasible to collect. This pilot study is the basis for the development of a spine trauma registry at the Level 1 trauma center.
    Type of Medium: Online Resource
    ISSN: 2192-5682 , 2192-5690
    URL: Article
    DOI: 10.1055/s-0032-1319772
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 2648287-3
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  • 9
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    Online Resource
    The effect of normovolemic modified ultrafiltration on inflammatory mediators, endotoxins, terminal complement complexes and clinical outcome in high-risk cardiac surgery patients
    SAGE Publications ; 2013
    In:  Perfusion Vol. 28, No. 4 ( 2013-07), p. 306-314
    Details
    In: Perfusion, SAGE Publications, Vol. 28, No. 4 ( 2013-07), p. 306-314
    Abstract: The clinical benefit of normovolemic modified ultrafiltration (N-MUF) after cardiac surgery is still debated. As we have shown in a previous publication, there is a significant improvement in platelet function, so we were interested in whether ultrafiltration can reduce plasma levels of endotoxins, terminal complement complexes and cytokines after cardiopulmonary bypass (CPB) in adults with increased risk profiles. Methods: In this single-center, prospective, randomized trial, fifty high-risk patients (mean logistic EuroSCORE II: 17.5%) who underwent cardiac surgery were randomized. After CPB, Group 1 (n = 25) served as the control and in, Group 2 (n= 25), an N-MUF of 3000 ml was performed, using a BC140plus filter after weaning from CPB. Blood samples were taken after the induction of anesthesia, before CPB, before CPB weaning, 30 minutes after CPB and at 6, 24 and 48 hours postoperatively. Primary outcomes were plasma levels of lipopolysaccharide-binding protein (LBP), terminal complement complex (C5b9) and cytokines (IL-6, IL-10, IL-1beta, TNF-α). Secondary outcomes focused on differences in the clinical outcome. Results: A significant reduction in LBP concentration (preoperatively: 23.8±8.4 pg/ml, postoperatively: 14.2±12.9 pg/ml) and C5b9 (preoperatively: 4.18±2.6 pg/ml, postoperatively: 3.05±2.39 pg/ml) were detected 6 hours after N-MUF. In the N-MUF group, significantly lower concentrations of lactate could be detected in the early postoperative period. Furthermore, postoperative chest tube blood loss was significantly lower in the N-MUF group at 24 and 48 hours. Conclusions: N-MUF leads to a significant reduction of lipopolysaccharide-binding protein and terminal complement complex and was associated with reduced blood loss and postoperative lactate concentrations shortly after surgery.
    Type of Medium: Online Resource
    ISSN: 0267-6591 , 1477-111X
    URL: Article
    DOI: 10.1177/0267659113478450
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2029611-3
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  • 10
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    Online Resource
    Quick, Simple and Reliable: Forced Binary Survey Questions
    SAGE Publications ; 2011
    In:  International Journal of Market Research Vol. 53, No. 2 ( 2011-03), p. 231-252
    Details
    In: International Journal of Market Research, SAGE Publications, Vol. 53, No. 2 ( 2011-03), p. 231-252
    Abstract: Consumers are increasingly saturated by market research, which leads to decreasing response rates and an increased danger of response bias. Market researchers thus face the challenge of recruiting respondents, increasing response rates and reducing respondent fatigue by making questionnaires as short and pleasant as possible. One way of achieving this is to replace traditionally used ordinal multi-category answer formats (such as Likert-type scales) with forced binary scales. This proposition is attractive only if it indeed shortens the survey time while not compromising the quality of managerial insights from the data. This study investigates these conditions. Results from a repeat-measurement design indicate that managerial interpretations do not differ substantially between the two answer formats, responses are equally reliable, and that the binary format is quicker and perceived as less complex.
    Type of Medium: Online Resource
    ISSN: 1470-7853 , 2515-2173
    URL: Article
    DOI: 10.2501/IJMR-53-2-231-252
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2011
    detail.hit.zdb_id: 2066720-6
    SSG: 3,2
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