Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy

Che Suraya Zin,1 Nor Elina Alias,1 Nor Hidayah Taufek,1 Mazlila Meor Ahmad21Kulliyah of Pharmacy, International Islamic University Malaysia, Kuantan Campus, 25200 Kuantan, Pahang, Malaysia; 2Hospital Selayang, Lebuhraya Selayang-Kepong, 68100 Batu Caves, Selangor Darul Ehsan, MalaysiaPurpose: This s...

Full description

Bibliographic Details
Main Authors: Zin CS, Alias NE, Taufek NH, Ahmad MM
Format: Article
Language:English
Published: Dove Medical Press 2019-04-01
Series:Journal of Pain Research
Subjects:
Online Access:https://www.dovepress.com/sex-differences-in-high-opioid-dose-escalation-among-malaysian-patient-peer-reviewed-article-JPR
_version_ 1819169305019809792
author Zin CS
Alias NE
Taufek NH
Ahmad MM
author_facet Zin CS
Alias NE
Taufek NH
Ahmad MM
author_sort Zin CS
collection DOAJ
description Che Suraya Zin,1 Nor Elina Alias,1 Nor Hidayah Taufek,1 Mazlila Meor Ahmad21Kulliyah of Pharmacy, International Islamic University Malaysia, Kuantan Campus, 25200 Kuantan, Pahang, Malaysia; 2Hospital Selayang, Lebuhraya Selayang-Kepong, 68100 Batu Caves, Selangor Darul Ehsan, MalaysiaPurpose: This study evaluated the risk of opioid dose escalation as it relates to sex differences among patients receiving opioids for long-term therapy.Patients and methods: This retrospective cohort study was conducted in tertiary hospital settings in Malaysia using electronic prescription records. Opioid naïve patients, aged ≥18 years, who were undergoing long-term opioid therapy of ≥90 days, with at least one opioid prescription (buprenorphine, morphine, oxycodone, fentanyl, dihydrocodeine or tramadol) between 1st January 2011 and 31st December 2016, were included in the study. They were followed until (i) the end of the study period, (ii) death from any cause or (iii) discontinuation of therapy from their first opioid prescription without any intervals of ≥120 days between successive prescriptions. The risk of high opioid dose escalation to ≥100 mg/day and ≥200 mg/day relative to men and women was measured.Results: A total of 4688 patients (58.8% women, 41.3% men) on long-term opioid therapy were identified. Among these patients, 248 (5.29%) were escalated to high opioid doses of ≥100 mg/day and 69 (1.47%) were escalated to ≥200 mg/day. The escalation to high-dose opioid therapy was more likely to occur in men than in women, even after adjustment for age (dose ≥100 mg/day [adjusted hazard ratio 2.32; 95% confidence interval (CI), 1.79 to 3.00; p<0.0001] and ≥200 mg/day [adjusted hazard ratio 6.10; 95% CI, 3.39 to 10.98; p<0.0001]).Conclusion: The risk of opioid dose escalation differed between men and women, as men were at higher risk than women for high opioid dose escalation.Keywords: opioids, dose escalation, opioid prescribing, male patient, female patient
first_indexed 2024-12-22T19:17:23Z
format Article
id doaj.art-39f80368a22542918b1339b34cf8b8af
institution Directory Open Access Journal
issn 1178-7090
language English
last_indexed 2024-12-22T19:17:23Z
publishDate 2019-04-01
publisher Dove Medical Press
record_format Article
series Journal of Pain Research
spelling doaj.art-39f80368a22542918b1339b34cf8b8af2022-12-21T18:15:29ZengDove Medical PressJournal of Pain Research1178-70902019-04-01Volume 121251125745244Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapyZin CSAlias NETaufek NHAhmad MMChe Suraya Zin,1 Nor Elina Alias,1 Nor Hidayah Taufek,1 Mazlila Meor Ahmad21Kulliyah of Pharmacy, International Islamic University Malaysia, Kuantan Campus, 25200 Kuantan, Pahang, Malaysia; 2Hospital Selayang, Lebuhraya Selayang-Kepong, 68100 Batu Caves, Selangor Darul Ehsan, MalaysiaPurpose: This study evaluated the risk of opioid dose escalation as it relates to sex differences among patients receiving opioids for long-term therapy.Patients and methods: This retrospective cohort study was conducted in tertiary hospital settings in Malaysia using electronic prescription records. Opioid naïve patients, aged ≥18 years, who were undergoing long-term opioid therapy of ≥90 days, with at least one opioid prescription (buprenorphine, morphine, oxycodone, fentanyl, dihydrocodeine or tramadol) between 1st January 2011 and 31st December 2016, were included in the study. They were followed until (i) the end of the study period, (ii) death from any cause or (iii) discontinuation of therapy from their first opioid prescription without any intervals of ≥120 days between successive prescriptions. The risk of high opioid dose escalation to ≥100 mg/day and ≥200 mg/day relative to men and women was measured.Results: A total of 4688 patients (58.8% women, 41.3% men) on long-term opioid therapy were identified. Among these patients, 248 (5.29%) were escalated to high opioid doses of ≥100 mg/day and 69 (1.47%) were escalated to ≥200 mg/day. The escalation to high-dose opioid therapy was more likely to occur in men than in women, even after adjustment for age (dose ≥100 mg/day [adjusted hazard ratio 2.32; 95% confidence interval (CI), 1.79 to 3.00; p<0.0001] and ≥200 mg/day [adjusted hazard ratio 6.10; 95% CI, 3.39 to 10.98; p<0.0001]).Conclusion: The risk of opioid dose escalation differed between men and women, as men were at higher risk than women for high opioid dose escalation.Keywords: opioids, dose escalation, opioid prescribing, male patient, female patienthttps://www.dovepress.com/sex-differences-in-high-opioid-dose-escalation-among-malaysian-patient-peer-reviewed-article-JPROpioidsdose escalationopioid prescribingManWoman
spellingShingle Zin CS
Alias NE
Taufek NH
Ahmad MM
Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
Journal of Pain Research
Opioids
dose escalation
opioid prescribing
Man
Woman
title Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
title_full Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
title_fullStr Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
title_full_unstemmed Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
title_short Sex differences in high opioid dose escalation among Malaysian patients with long term opioid therapy
title_sort sex differences in high opioid dose escalation among malaysian patients with long term opioid therapy
topic Opioids
dose escalation
opioid prescribing
Man
Woman
url https://www.dovepress.com/sex-differences-in-high-opioid-dose-escalation-among-malaysian-patient-peer-reviewed-article-JPR
work_keys_str_mv AT zincs sexdifferencesinhighopioiddoseescalationamongmalaysianpatientswithlongtermopioidtherapy
AT aliasne sexdifferencesinhighopioiddoseescalationamongmalaysianpatientswithlongtermopioidtherapy
AT taufeknh sexdifferencesinhighopioiddoseescalationamongmalaysianpatientswithlongtermopioidtherapy
AT ahmadmm sexdifferencesinhighopioiddoseescalationamongmalaysianpatientswithlongtermopioidtherapy