Cobb method has been shown to be the most reliable technique with a reasonable measurement error ... more Cobb method has been shown to be the most reliable technique with a reasonable measurement error to determine the kyphosis in fresh fractures of young patients. However, measurement errors may be higher for elderly patients as it may be difficult to determine the landmarks due to osteopenia and the degenerative changes. The aim of this study is to investigate the intrinsic error for different techniques used in evaluation of local sagittal plane deformity caused by OVCF. Lateral X-rays of OVCF patients were randomly selected. Patient group was composed of 28 females and 7 males and the mean age was 62.7 (55–75) years. The kyphosis angle and the vertebral body height were analyzed to reveal the severity of sagittal plane deformity. Kyphotic deformity was measured by using four different techniques; and the vertebral body heights (VBH) were measured at three different points. The mean intra-observer agreement interval for kyphosis angle measurement techniques ranged from ±7.1 to ±9.3° while it ranged from ±4.5 to ±6.5 mm for VBH measurement techniques. The mean interobserver agreement interval for kyphosis angle ranged from ±8.2 to ±11.1°, while it was between ±4.5 to ±6.5 mm for vertebral body height measurement techniques. This study revealed that although the intra and interobserver agreement were similar for all techniques, they are still higher than expected. These high intervals for measurement errors should be taken into account when interpreting the results of correction in local sagittal plane deformities of OVCF patients after surgical procedures such as vertebral augmentation techniques.
Journal of Clinical Psychology in Medical Settings, 2010
Posttraumatic Growth (PTG) is accepted as positive transformations that are a product of struggli... more Posttraumatic Growth (PTG) is accepted as positive transformations that are a product of struggling with significant stressors such as chronic illness. A model, conceptualized by Schaefer and Moos (Posttraumatic growth: Positive changes in the aftermath of crisis, pp 99–126, 1998), suggests a relative contribution of environmental and individual resources, perception of the event (PE) and coping in the development of PTG. The aim of the present study was to examine the effect of perceived social support (PSS), PE and coping on PTG. This model was tested in a sample of patients with myocardial infarction (MIP, N = 148) from various hospitals in Turkey. The structural equation analysis of the model revealed that PSS was significantly related to PTG through the effect of coping. While coping was significantly and directly related to PTG, PE was not. The findings are discussed in the context of the theoretical model with suggestions for future research.
... 2006). Both L. sativus and L. cicera are cultivated in Turkey: A. Karadeniz (&amp... more ... 2006). Both L. sativus and L. cicera are cultivated in Turkey: A. Karadeniz (&) 4 N. Erdog˘an Department of Biology, Science and Art Faculty, Mehmet Akif Ersoy University, 15030 Burdur, Turkey e-mail: akaradeniz@mehmetakif.edu.tr ...
Outcome study to determine the internal consistency, and validity of adapted Turkish version of S... more Outcome study to determine the internal consistency, and validity of adapted Turkish version of Scoliosis Research Society-22 (SRS-22) Instrument. To evaluate the validity and reliability of adapted Turkish Version of SRS-22 questionnaire. The SRS-22 questionnaire is a widely accepted questionnaire to assess the health-related quality of life for scoliotic patients in the United States. However, its adaptation in languages other than the source language is necessary for its multinational use. Translation/retranslation of the English version of the SRS-22 was done, and all steps for cross-cultural adaptation process were performed properly by an expert committee. Later, SRS-22 questionnaires and previously validated Short Form-36 (SF-36) outcome instruments were mailed to 82 patients who had been surgically treated for idiopathic scoliosis. All patients had a minimum of 2 years follow-up. Fifty-four patients (66%) responded to the first set of questionnaires. Forty-seven of the first time respondents returned their second survey. The average age of the 47 patients (12 male, 35 female) was 19.8 years (range, 14-31 years). The two measures of reliability as internal consistency and reproducibility were determined by Cronbach alpha statistics and intraclass correlation coefficient, respectively. Concurrent validity was measured by comparing with an already validated questionnaire (SF-36). Measurement was made using the Pearson correlation coefficient (r). The study demonstrated satisfactory internal consistency with high Cronbach alpha values for the four of the corresponding domains (pain, 0.72; self-image, 0.80; mental health, 0.72; and satisfaction, 0.83). However, the Cronbach alpha value for function/activity domain (0.48) was considerably lower than the original questionnaire. The intraclass correlation coefficient for the same domains was 0.80, 0.82, 0.78, 0.81, and 0.76, respectively, demonstrating a satisfactory test/retest reproducibility. Considering concurrent validity, two domains had excellent correlation (r = 0.75-1), while 9 had good correlation (r = 0.50 to 0.75), and 6 had moderate correlation (r =0.25-0.50). Based on these results, question 18 in the function/activity domain with lower Cronbach alpha value was revised while question 15 was excluded. The revised SRS-22 was given to 30 adolescent idiopathic scoliosis patients not included in the index study. The revision could improve the Cronbach alpha value for function/activity domain from 0.48 to 0.81. This study demonstrated that, if measures are to be used across cultures, the items must not only be translated well linguistically but also must be culturally adapted to maintain the content validity of the instrument at a conceptual level across different cultures. This may necessitate several validation studies to ensure and improve consistency in the content and face validity between source and target versions of a questionnaire due to difficulty in detecting subtle differences in the living habits of different cultures.
Cobb method has been shown to be the most reliable technique with a reasonable measurement error ... more Cobb method has been shown to be the most reliable technique with a reasonable measurement error to determine the kyphosis in fresh fractures of young patients. However, measurement errors may be higher for elderly patients as it may be difficult to determine the landmarks due to osteopenia and the degenerative changes. The aim of this study is to investigate the intrinsic error for different techniques used in evaluation of local sagittal plane deformity caused by OVCF. Lateral X-rays of OVCF patients were randomly selected. Patient group was composed of 28 females and 7 males and the mean age was 62.7 (55–75) years. The kyphosis angle and the vertebral body height were analyzed to reveal the severity of sagittal plane deformity. Kyphotic deformity was measured by using four different techniques; and the vertebral body heights (VBH) were measured at three different points. The mean intra-observer agreement interval for kyphosis angle measurement techniques ranged from ±7.1 to ±9.3° while it ranged from ±4.5 to ±6.5 mm for VBH measurement techniques. The mean interobserver agreement interval for kyphosis angle ranged from ±8.2 to ±11.1°, while it was between ±4.5 to ±6.5 mm for vertebral body height measurement techniques. This study revealed that although the intra and interobserver agreement were similar for all techniques, they are still higher than expected. These high intervals for measurement errors should be taken into account when interpreting the results of correction in local sagittal plane deformities of OVCF patients after surgical procedures such as vertebral augmentation techniques.
Journal of Clinical Psychology in Medical Settings, 2010
Posttraumatic Growth (PTG) is accepted as positive transformations that are a product of struggli... more Posttraumatic Growth (PTG) is accepted as positive transformations that are a product of struggling with significant stressors such as chronic illness. A model, conceptualized by Schaefer and Moos (Posttraumatic growth: Positive changes in the aftermath of crisis, pp 99–126, 1998), suggests a relative contribution of environmental and individual resources, perception of the event (PE) and coping in the development of PTG. The aim of the present study was to examine the effect of perceived social support (PSS), PE and coping on PTG. This model was tested in a sample of patients with myocardial infarction (MIP, N = 148) from various hospitals in Turkey. The structural equation analysis of the model revealed that PSS was significantly related to PTG through the effect of coping. While coping was significantly and directly related to PTG, PE was not. The findings are discussed in the context of the theoretical model with suggestions for future research.
... 2006). Both L. sativus and L. cicera are cultivated in Turkey: A. Karadeniz (&amp... more ... 2006). Both L. sativus and L. cicera are cultivated in Turkey: A. Karadeniz (&) 4 N. Erdog˘an Department of Biology, Science and Art Faculty, Mehmet Akif Ersoy University, 15030 Burdur, Turkey e-mail: akaradeniz@mehmetakif.edu.tr ...
Outcome study to determine the internal consistency, and validity of adapted Turkish version of S... more Outcome study to determine the internal consistency, and validity of adapted Turkish version of Scoliosis Research Society-22 (SRS-22) Instrument. To evaluate the validity and reliability of adapted Turkish Version of SRS-22 questionnaire. The SRS-22 questionnaire is a widely accepted questionnaire to assess the health-related quality of life for scoliotic patients in the United States. However, its adaptation in languages other than the source language is necessary for its multinational use. Translation/retranslation of the English version of the SRS-22 was done, and all steps for cross-cultural adaptation process were performed properly by an expert committee. Later, SRS-22 questionnaires and previously validated Short Form-36 (SF-36) outcome instruments were mailed to 82 patients who had been surgically treated for idiopathic scoliosis. All patients had a minimum of 2 years follow-up. Fifty-four patients (66%) responded to the first set of questionnaires. Forty-seven of the first time respondents returned their second survey. The average age of the 47 patients (12 male, 35 female) was 19.8 years (range, 14-31 years). The two measures of reliability as internal consistency and reproducibility were determined by Cronbach alpha statistics and intraclass correlation coefficient, respectively. Concurrent validity was measured by comparing with an already validated questionnaire (SF-36). Measurement was made using the Pearson correlation coefficient (r). The study demonstrated satisfactory internal consistency with high Cronbach alpha values for the four of the corresponding domains (pain, 0.72; self-image, 0.80; mental health, 0.72; and satisfaction, 0.83). However, the Cronbach alpha value for function/activity domain (0.48) was considerably lower than the original questionnaire. The intraclass correlation coefficient for the same domains was 0.80, 0.82, 0.78, 0.81, and 0.76, respectively, demonstrating a satisfactory test/retest reproducibility. Considering concurrent validity, two domains had excellent correlation (r = 0.75-1), while 9 had good correlation (r = 0.50 to 0.75), and 6 had moderate correlation (r =0.25-0.50). Based on these results, question 18 in the function/activity domain with lower Cronbach alpha value was revised while question 15 was excluded. The revised SRS-22 was given to 30 adolescent idiopathic scoliosis patients not included in the index study. The revision could improve the Cronbach alpha value for function/activity domain from 0.48 to 0.81. This study demonstrated that, if measures are to be used across cultures, the items must not only be translated well linguistically but also must be culturally adapted to maintain the content validity of the instrument at a conceptual level across different cultures. This may necessitate several validation studies to ensure and improve consistency in the content and face validity between source and target versions of a questionnaire due to difficulty in detecting subtle differences in the living habits of different cultures.
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