{
  "abstract": "Introduction Continuous positive airway pressure (CPAP) is the gold standard treatment for obstructive sleep apnoea and is effective in improving sleep quality, reducing daytime sleepiness, and lowering cardiovascular risks. Despite these benefits, long-term compliance to CPAP therapy remains a challenge. Socioeconomic deprivation has been proposed as a potential determinant of CPAP compliance; however, current evidence is controversial. Exploring this relationship within a Cardiff sleep service, may help to inform future service development and support the implementation of tailored interventions to improve CPAP compliance.Methods We conducted a retrospective study of patients with moderate-to-severe OSA who were initiated on CPAP therapy between May 2022 and May 2023. Socioeconomic status was assigned using the 2019 Welsh Index of Multiple Deprivation (WIMD), with patients grouped into quintiles from most deprived (quintile 1) to least deprived (quintile 5) based on postcode. CPAP compliance (≥4 hours/night on ≥70% of nights) and median nightly usage were assessed at 3 and 12 months following initiation. Compliance was compared across quintiles using the chi-square test, and median usage using the Kruskal-Wallis test.Results A total of 287 patients were included at baseline, with 224 patients available for three-month CPAP compliance analysis, and 183 for twelve-month analysis. CPAP compliance varied across WIMD quintiles; however, no statistically significant association was observed between WIMD quintile and CPAP compliance at either 3-months (p=0.705) or twelve months (p=0.339). Median CPAP usage increased from three to twelve months across most deprivation groups, but no statistically significant differences were observed between quintiles at either time point (p>0.05). DNA rates were higher in the most deprived quintile (21.4%) compared with the least deprived quintile (11.6%). Table 1Conclusion In this Cardiff cohort, CPAP compliance and median usage were higher in the least deprived quintile, compared with the most deprived quintile, particularly at 12 months. However, socioeconomic deprivation was not significantly associated with CPAP compliance or usage at either three or twelve months. These findings indicate that deprivation alone is not a key determinant of CPAP compliance within the Cardiff sleep service. Further research into individual-level socioeconomic factors may help to better understand drivers of long-term CPAP compliance.Abstract P31 Table 1Compliance and usage at 3 months and 12 months at each WIMD quintile3 months12 monthsWIMD quintilenCompliance (%)Median CPAP usage h/night (IQR)nCompliance (%)Median CPAP usage h/night (IQR)1 (most deprived) 55 38.2 4.5 (1.8-6.1) 43 44.2 5.3 (3.8-7.0) 2 33 45.5 5.1 (1.5-6.4) 25 48.0 5.2 (2.0-6.0) 3 23 47.8 5.3 (3.7-6.1) 18 61.1 5.0 (3.9-6.7) 4 37 40.5 5.0 (1.7-7.0) 32 56.3 5.6 (3.9-6.9) 5 (least deprived) 76 50.0 5.5 (2.7-6.5) 65 63.1 5.9 (4.8-7.0) Note: WIMD: Welsh Index of Multiple Deprivation, CPAP: Continuous positive airway pressure, IQR: Interquartile range.",
  "authors": [
    {
      "affiliations": [
        "Cardiff and Vale University Health Board, Cardiff, United Kingdom"
      ],
      "name": "Savannah-rose Preudhomme"
    },
    {
      "affiliations": [
        "Cardiff and Vale University Health Board, Cardiff, United Kingdom"
      ],
      "name": "Corey Davies"
    },
    {
      "affiliations": [
        "Manchester Metropolitan University, Manchester, United Kingdom"
      ],
      "name": "Virginia Hawkins"
    }
  ],
  "title": "P31 Evaluating the impact of socioeconomic deprivation on CPAP compliance and usage among patients in Cardiff: a retrospective study",
  "uid": "d4d7716f-73db-572a-9e92-718121b27ec2"
}