Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression

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Standard

Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression. / Conway, Paul Maurice; Høgh, Annie; Nabe-Nielsen, Kirsten; Grynderup, Matias Brødsgaard; Mikkelsen, Eva Gemzøe; Persson, Roger; Rugulies, Reiner; Bonde, Jens Peter Ellekilde; Francioli, Laura; Hansen, Åse Marie.

In: Annals of Work Exposures and Health, Vol. 62, No. 3, 01.04.2018, p. 281-294.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Conway, PM, Høgh, A, Nabe-Nielsen, K, Grynderup, MB, Mikkelsen, EG, Persson, R, Rugulies, R, Bonde, JPE, Francioli, L & Hansen, ÅM 2018, 'Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression', Annals of Work Exposures and Health, vol. 62, no. 3, pp. 281-294. https://doi.org/10.1093/annweh/wxx105

APA

Conway, P. M., Høgh, A., Nabe-Nielsen, K., Grynderup, M. B., Mikkelsen, E. G., Persson, R., ... Hansen, Å. M. (2018). Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression. Annals of Work Exposures and Health, 62(3), 281-294. https://doi.org/10.1093/annweh/wxx105

Vancouver

Conway PM, Høgh A, Nabe-Nielsen K, Grynderup MB, Mikkelsen EG, Persson R et al. Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression. Annals of Work Exposures and Health. 2018 Apr 1;62(3):281-294. https://doi.org/10.1093/annweh/wxx105

Author

Conway, Paul Maurice ; Høgh, Annie ; Nabe-Nielsen, Kirsten ; Grynderup, Matias Brødsgaard ; Mikkelsen, Eva Gemzøe ; Persson, Roger ; Rugulies, Reiner ; Bonde, Jens Peter Ellekilde ; Francioli, Laura ; Hansen, Åse Marie. / Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression. In: Annals of Work Exposures and Health. 2018 ; Vol. 62, No. 3. pp. 281-294.

Bibtex

@article{ce4fd169d1494150a3209837cbd21f7f,
title = "Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression",
abstract = "Objectives: The behavioural experience method has been extensively used in the literature for the measurement of potential bullying behaviours at work. However, this approach presents limitations when used to classify respondents as targets or non-targets of workplace bullying. Therefore, the present study aimed to: (i) identify optimal cut-off points, reflecting a possible subjectively experienced exposure to occasional and frequent workplace bullying, for the 9-item Short Negative Act Questionnaire (S-NAQ), and (ii) examine the criterion validity of these cut-off points in relation to depressive symptoms and diagnosis of depression. Methods: The study was based on a sample of 4882 participants from the Danish MODENA cohort study (year 2011), which included both the S-NAQ (score range 9-45) and a one-item measure applying the self-labelling method with a definition to assess occasional and frequent workplace bullying. We employed receiver operating characteristic (ROC) curve analyses to derive the cut-off points for the S-NAQ. Based on these cut-off points, we created a new S-NAQ variable with three levels of exposure (i.e. 'not exposed', 'first threshold', and 'second threshold') and tested its criterion validity in relation to depressive symptoms (N = 4071) and diagnosis of depression (N = 4844). Results: The S-NAQ cut-off points obtained were =12 and =16 when using occasional and frequent bullying as reference standards, respectively. Both cut-off points showed high classification accuracy (area under the curve = 0.89 and 0.93) as well as good sensitivity (84.8{\%} and 88.0{\%}) and specificity (77.4{\%} and 94.7{\%}). In the adjusted linear regression analyses, both the first (B = 0.78, 95{\%} confidence interval [CI] = 0.66-0.90) and the second threshold of exposure (B = 1.65, 95{\%} CI = 1.44-1.86) were significantly associated with depressive symptoms. In the adjusted logistic regression analyses, both the first (odds ratio [OR] = 3.55, 95{\%} CI = 1.98-6.38) and the second threshold of exposure (OR = 5.90, 95{\%} CI = 2.93-11.88) were significantly associated with diagnosis of depression. Conclusions: The two cut-off points for the S-NAQ identified in this study showed a significant association with both depressive symptoms and diagnosis of depression. However, future prospective studies are needed to establish the predictive validity of the proposed cut-off points.",
keywords = "Behavioural experience method, Depressive symptoms, Diagnosis of depression, ROC curve analysis, Self-labelling method with a definition, Short negative act questionnaire, Workplace bullying",
author = "Conway, {Paul Maurice} and Annie H{\o}gh and Kirsten Nabe-Nielsen and Grynderup, {Matias Br{\o}dsgaard} and Mikkelsen, {Eva Gemz{\o}e} and Roger Persson and Reiner Rugulies and Bonde, {Jens Peter Ellekilde} and Laura Francioli and Hansen, {{\AA}se Marie}",
year = "2018",
month = "4",
day = "1",
doi = "10.1093/annweh/wxx105",
language = "English",
volume = "62",
pages = "281--294",
journal = "Annals of Work Exposures and Health",
issn = "2398-7308",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Optimal cut-off points for the short-negative act questionnaire and their association with depressive symptoms and diagnosis of depression

AU - Conway, Paul Maurice

AU - Høgh, Annie

AU - Nabe-Nielsen, Kirsten

AU - Grynderup, Matias Brødsgaard

AU - Mikkelsen, Eva Gemzøe

AU - Persson, Roger

AU - Rugulies, Reiner

AU - Bonde, Jens Peter Ellekilde

AU - Francioli, Laura

AU - Hansen, Åse Marie

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Objectives: The behavioural experience method has been extensively used in the literature for the measurement of potential bullying behaviours at work. However, this approach presents limitations when used to classify respondents as targets or non-targets of workplace bullying. Therefore, the present study aimed to: (i) identify optimal cut-off points, reflecting a possible subjectively experienced exposure to occasional and frequent workplace bullying, for the 9-item Short Negative Act Questionnaire (S-NAQ), and (ii) examine the criterion validity of these cut-off points in relation to depressive symptoms and diagnosis of depression. Methods: The study was based on a sample of 4882 participants from the Danish MODENA cohort study (year 2011), which included both the S-NAQ (score range 9-45) and a one-item measure applying the self-labelling method with a definition to assess occasional and frequent workplace bullying. We employed receiver operating characteristic (ROC) curve analyses to derive the cut-off points for the S-NAQ. Based on these cut-off points, we created a new S-NAQ variable with three levels of exposure (i.e. 'not exposed', 'first threshold', and 'second threshold') and tested its criterion validity in relation to depressive symptoms (N = 4071) and diagnosis of depression (N = 4844). Results: The S-NAQ cut-off points obtained were =12 and =16 when using occasional and frequent bullying as reference standards, respectively. Both cut-off points showed high classification accuracy (area under the curve = 0.89 and 0.93) as well as good sensitivity (84.8% and 88.0%) and specificity (77.4% and 94.7%). In the adjusted linear regression analyses, both the first (B = 0.78, 95% confidence interval [CI] = 0.66-0.90) and the second threshold of exposure (B = 1.65, 95% CI = 1.44-1.86) were significantly associated with depressive symptoms. In the adjusted logistic regression analyses, both the first (odds ratio [OR] = 3.55, 95% CI = 1.98-6.38) and the second threshold of exposure (OR = 5.90, 95% CI = 2.93-11.88) were significantly associated with diagnosis of depression. Conclusions: The two cut-off points for the S-NAQ identified in this study showed a significant association with both depressive symptoms and diagnosis of depression. However, future prospective studies are needed to establish the predictive validity of the proposed cut-off points.

AB - Objectives: The behavioural experience method has been extensively used in the literature for the measurement of potential bullying behaviours at work. However, this approach presents limitations when used to classify respondents as targets or non-targets of workplace bullying. Therefore, the present study aimed to: (i) identify optimal cut-off points, reflecting a possible subjectively experienced exposure to occasional and frequent workplace bullying, for the 9-item Short Negative Act Questionnaire (S-NAQ), and (ii) examine the criterion validity of these cut-off points in relation to depressive symptoms and diagnosis of depression. Methods: The study was based on a sample of 4882 participants from the Danish MODENA cohort study (year 2011), which included both the S-NAQ (score range 9-45) and a one-item measure applying the self-labelling method with a definition to assess occasional and frequent workplace bullying. We employed receiver operating characteristic (ROC) curve analyses to derive the cut-off points for the S-NAQ. Based on these cut-off points, we created a new S-NAQ variable with three levels of exposure (i.e. 'not exposed', 'first threshold', and 'second threshold') and tested its criterion validity in relation to depressive symptoms (N = 4071) and diagnosis of depression (N = 4844). Results: The S-NAQ cut-off points obtained were =12 and =16 when using occasional and frequent bullying as reference standards, respectively. Both cut-off points showed high classification accuracy (area under the curve = 0.89 and 0.93) as well as good sensitivity (84.8% and 88.0%) and specificity (77.4% and 94.7%). In the adjusted linear regression analyses, both the first (B = 0.78, 95% confidence interval [CI] = 0.66-0.90) and the second threshold of exposure (B = 1.65, 95% CI = 1.44-1.86) were significantly associated with depressive symptoms. In the adjusted logistic regression analyses, both the first (odds ratio [OR] = 3.55, 95% CI = 1.98-6.38) and the second threshold of exposure (OR = 5.90, 95% CI = 2.93-11.88) were significantly associated with diagnosis of depression. Conclusions: The two cut-off points for the S-NAQ identified in this study showed a significant association with both depressive symptoms and diagnosis of depression. However, future prospective studies are needed to establish the predictive validity of the proposed cut-off points.

KW - Behavioural experience method

KW - Depressive symptoms

KW - Diagnosis of depression

KW - ROC curve analysis

KW - Self-labelling method with a definition

KW - Short negative act questionnaire

KW - Workplace bullying

U2 - 10.1093/annweh/wxx105

DO - 10.1093/annweh/wxx105

M3 - Journal article

VL - 62

SP - 281

EP - 294

JO - Annals of Work Exposures and Health

JF - Annals of Work Exposures and Health

SN - 2398-7308

IS - 3

ER -

ID: 201038660