Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.

BACKGROUND: Previous research into psychological distress among people who inject drugs (PWID) is predominantly cross-sectional; we determined longitudinal predictors of change in psychological distress among a cohort of PWID. METHOD: We examined Kessler Psychological Distress Scale (K10) scores fro...

Full description

Bibliographic Details
Main Authors: Scott, N., Carrotte, E., Higgs, Peter, Cogger, S., Stoové, M., Aitken, C., Dietze, P.
Format: Journal Article
Published: Elsevier Ireland Ltd 2016
Online Access:http://hdl.handle.net/20.500.11937/54426
_version_ 1848759368650063872
author Scott, N.
Carrotte, E.
Higgs, Peter
Cogger, S.
Stoové, M.
Aitken, C.
Dietze, P.
author_facet Scott, N.
Carrotte, E.
Higgs, Peter
Cogger, S.
Stoové, M.
Aitken, C.
Dietze, P.
author_sort Scott, N.
building Curtin Institutional Repository
collection Online Access
description BACKGROUND: Previous research into psychological distress among people who inject drugs (PWID) is predominantly cross-sectional; we determined longitudinal predictors of change in psychological distress among a cohort of PWID. METHOD: We examined Kessler Psychological Distress Scale (K10) scores from 564 PWID (66% male) enrolled in the Melbourne Injecting Drug User Cohort Study. Gender-stratified linear models with fixed effects for each participant were used to examine correlates of change in individual K10 scores. Further linear regressions of adjusted K10 scores were used to measure correlations between demographic variables. RESULTS: Participants reported higher K10 scores (higher psychological distress) than the general Australian population (mean K10 scores 23.4 (95%CI 22.6-24.2) and 14.5 (95%CI 14.3-14.7) respectively). The cohort's mean K10 score did not significantly differ over time, but individual variations were common. Women reported higher K10 scores than men (mean baseline K10 scores 25.2 (95%CI 23.9-26.6) and 22.4 (95%CI 21.5-23.3) respectively), however no significant differences remained after controlling for temporal factors. Key predictors of increases in K10 scores were being the victim of an assault in the past six months (P<0.001 for women and men) and intentionally overdosing in the past 12 months (P=.010 for women and P<0.001 for men). CONCLUSIONS: PWID experience higher levels of psychological distress than the general population. Temporal rather than individual factors may account for the higher levels of psychological distress reported among women. Interventions to reduce rates of assault and/or intentional overdose should be explored to reduce high levels of psychological distress among PWID.
first_indexed 2025-11-14T09:58:47Z
format Journal Article
id curtin-20.500.11937-54426
institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T09:58:47Z
publishDate 2016
publisher Elsevier Ireland Ltd
recordtype eprints
repository_type Digital Repository
spelling curtin-20.500.11937-544262017-09-13T15:50:48Z Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia. Scott, N. Carrotte, E. Higgs, Peter Cogger, S. Stoové, M. Aitken, C. Dietze, P. BACKGROUND: Previous research into psychological distress among people who inject drugs (PWID) is predominantly cross-sectional; we determined longitudinal predictors of change in psychological distress among a cohort of PWID. METHOD: We examined Kessler Psychological Distress Scale (K10) scores from 564 PWID (66% male) enrolled in the Melbourne Injecting Drug User Cohort Study. Gender-stratified linear models with fixed effects for each participant were used to examine correlates of change in individual K10 scores. Further linear regressions of adjusted K10 scores were used to measure correlations between demographic variables. RESULTS: Participants reported higher K10 scores (higher psychological distress) than the general Australian population (mean K10 scores 23.4 (95%CI 22.6-24.2) and 14.5 (95%CI 14.3-14.7) respectively). The cohort's mean K10 score did not significantly differ over time, but individual variations were common. Women reported higher K10 scores than men (mean baseline K10 scores 25.2 (95%CI 23.9-26.6) and 22.4 (95%CI 21.5-23.3) respectively), however no significant differences remained after controlling for temporal factors. Key predictors of increases in K10 scores were being the victim of an assault in the past six months (P<0.001 for women and men) and intentionally overdosing in the past 12 months (P=.010 for women and P<0.001 for men). CONCLUSIONS: PWID experience higher levels of psychological distress than the general population. Temporal rather than individual factors may account for the higher levels of psychological distress reported among women. Interventions to reduce rates of assault and/or intentional overdose should be explored to reduce high levels of psychological distress among PWID. 2016 Journal Article http://hdl.handle.net/20.500.11937/54426 10.1016/j.drugalcdep.2016.08.638 Elsevier Ireland Ltd restricted
spellingShingle Scott, N.
Carrotte, E.
Higgs, Peter
Cogger, S.
Stoové, M.
Aitken, C.
Dietze, P.
Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title_full Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title_fullStr Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title_full_unstemmed Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title_short Longitudinal changes in psychological distress in a cohort of people who inject drugs in Melbourne, Australia.
title_sort longitudinal changes in psychological distress in a cohort of people who inject drugs in melbourne, australia.
url http://hdl.handle.net/20.500.11937/54426