Factors associated with suicidal behaviors in a large French sample of inpatients with eating disorders

Fedorowicz, V.; Falissard, Bruno; Foulon, C.; Dardennes, Roland; Divac, Snežana M.; Guelfi, Julien Daniel; Rouillon, Frédéric

doi:10.1002/eat.20415

Cited by 46 publications

(55 citation statements)

References 40 publications

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“…Patient characteristics and procedures have been described previously in Fedorowicz et al, 2007(Fedorowicz et al, 2007. We focused on two instruments, the 13-item version of the BDI (Beck et al, 1961) and the 21-item version of the HAMD (Hamilton, 1960).…”

Section: July 2004 In the Eating Disorder Unit Of The Clinique Des Mamentioning

confidence: 99%

“…The most widely cited minimum value considered as acceptable for the Cronbach's alpha coefficient is 0.7 (Fedorowicz et al, 2007;Nunnaly, 1978;Peterson, 1994). We therefore chose to study the half-width of the confidence interval of this coefficient for three expected values (α=0.7, 0.8 and 0.9) in relation to p and N (same values as previously).…”

Section: Precision Of Cronbach's Alpha Coefficientmentioning

confidence: 99%

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Sample size requirements for the internal validation of psychiatric scales

Rouquette

Falissard

2011

Int J Methods Psych Res

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To cite this version:Alexandra Rouquette, Bruno Falissard. Sample size requirements for the internal validation of psychiatric scales.. International Journal of Methods in Psychiatric Research, Wiley, 2011, 20 (4) Abstract:The ratio of subjects to variables (N/p), as a rule to calculate the sample size required in internal validity studies on measurement scales, has been recommended without any strict theoretical or empirical basis being provided. The purpose of the present study was to develop a tool to determine sample size for these studies in the field of psychiatry. First, a literature review was carried out to identify the distinctive features of psychiatric scales. Then, two simulation methods were developed to generate data according to: 1/ the model for factor structure derived from the literature review and 2/ a real dataset. This enabled the study of the quality of solutions obtained from principal component analysis or Exploratory Factor Analysis (EFA) on various sample sizes. Lastly, the influence of sample size on the precision of Cronbach"s alpha coefficient was examined. The N/p ratio rule is not upheld by this study: short scales do not allow smaller sample size. As a rule of thumb, if one"s aim is to reveal the factor structure, a minimum of 300 subjects is generally acceptable but should be increased when the number of factors within the scale is large, when EFA is used and when the number of items is small.

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Section: July 2004 In the Eating Disorder Unit Of The Clinique Des Mamentioning

confidence: 99%

Section: Precision Of Cronbach's Alpha Coefficientmentioning

confidence: 99%

Sample size requirements for the internal validation of psychiatric scales

Rouquette

Falissard

2011

Int J Methods Psych Res

Self Cite

208

121

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show abstract

“…As previously described [4] , all patients were asked to complete a self-administered questionnaire, gathering sociodemographic and clinical information at entry as a part of the regular admission procedure. They were also assessed by trained physicians or psychologists who completed a clinician-rated scale and determined lifetime ED diagnoses according to the DSM and ICD criteria during a semistructured interview.…”

Section: Data Collectionmentioning

confidence: 99%

Outcomes of Empirical Eating Disorder Phenotypes in a Clinical Female Sample: Results from a Latent Class Analysis

Dechartres¹,

Huas²,

Godart³

et al. 2010

Psychopathology

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Background/Aims: To empirically classify phenotypes of eating disorders (ED) using latent class analysis (LCA), and to validate this classification based on clinical outcomes. Methods: LCA was applied to 968 inpatients. The resultant classes were validated by clinical outcomes including mortality. Results: A 5-class solution showed the best fit. The symptoms of latent class 1 (LC1; 26% of the sample) resembled anorexia nervosa (AN), bingeing-purging (AN-B/P) subtype; those of LC2 (23%) resembled bulimia nervosa; those of LC3 (11%) were close to AN-B/P without weight and body concerns; those of LC4 resembled restrictive anorexia nervosa (RAN) without weight and body concerns, and those of LC5 RAN. A history of hospitalization for ED was significantly more frequent for LC3 and LC4. The lowest BMI at admission were presented in LC4. LC1 showed the highest level of psychological disturbances and LC4 the lowest. LC3 and LC4 differed from LC1 and LC5 by higher percentages of treatment dropout (64.9 vs. 57.2 and 55.7 vs. 47.5%, respectively; overall p = 0.001). Survival rates tended to be different between the LC (p = 0.09). Conclusions: Subgroups of AN patients with low weight and body concerns seem more severe at hospitalization and more difficult to manage, with a higher rate of treatment dropout than the ‘typical’ AN patients.

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“…The recommended range as shown in Table 1 was reliable (> 0.7) and widely accepted at Cronbach's alpha level for this questionnaire (Fedorowicz et al, 2007, Sheikh et al, 2015. The questionnaire was further divided into three domains such as capacity building, self-esteem and self-efficacy.…”

Section: Methodsmentioning

confidence: 99%

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2016

AJARD

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1Community empowerment is an important goal for many governments in developing countries. Various activities for the empowerment of communities have been conducted in developing countries like Pakistan. The present research attempted to assess an activity of community empowerment on the Crop Maximization Project (CMP-II) in Sindh province, Pakistan. A total of 455 small farmers were surveyed using questionnaire in three districts namely; Khairpur, Nawabshah and Mirpurkhas. The level of empowerment was assessed based on three domains namely; capacity building, self-esteem and self-efficacy. The findings of the study showed that, there was a moderate level of empowerment among the beneficiaries (small farmers) of the crop maximization projects of the Sindh province based on a summed mean score of 178.77 for the three dimensions of empowerment. Therefore, it is concluded that projects like crop maximization are able to empower the beneficiaries as the intangible outcomes.

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Factors associated with suicidal behaviors in a large French sample of inpatients with eating disorders

Cited by 46 publications

References 40 publications

Sample size requirements for the internal validation of psychiatric scales

Sample size requirements for the internal validation of psychiatric scales

Outcomes of Empirical Eating Disorder Phenotypes in a Clinical Female Sample: Results from a Latent Class Analysis

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