To identify the association between stoma complication and the prescription spend of stoma related appliances. This is a retrospective cross-sectional observational study investigating the association between stoma appliance consumption and faecal leakage from the stoma pouch (FL), peristomal skin complications (PSC), social concern (SC) and ballooning/pancaking (BP). Data is collected via a community-based patient support programme in the UK. We use multivariable regression with/without logarithmic transformation of the cost variable to model the absolute and relative association to costs of bags and plates and other reimbursed supporting products, separately and combined. 2713 patients from 31 clinical commissioning groups were included from 2016 to 2018. Mean age was 69.9yr, 47% were female. 25.1% had FL, 23.6% (PSC), 12.2% (SC) and 9.3% (BP). The mean total monthly cost of stoma appliances was £200.01 (£158.23 for bags/plates and £41.84 for supporting products). The parameter estimates (p-values) comparing patients with/without complications controlled for confounders for FL, PSC, SC and BP in the analysis of non-transformed monthly costs of bags/plates are £24.83 (0.002), £0.17 (0.973), £25.16 (<0.001) and £15.53 (0.025), respectively. The estimates in the log transformed analysis are 0.137 (<0.001), 0.048 (0.104), 0.157 (<0.001) and 0.104 (0.011). In the analysis of costs of supporting products, the estimates are £12.61 (<0.001), £2.25 (0.377), £10.58 (0.001), £5.86 (0.096) in the non-transformed analysis are0.226 (<0.001), 0.048 (0.394), 0.100 (0.150) and 0.124 (0.114) in the log transformed. The model analysing the non-transformed costs of all stoma products has the following parameter estimates, £35.55 (<.0001), £2.41 (0.697), £35.74 (<0.001) and £21.39 (0.013), respectively and 0.189 (<0.001), 0.011 (0.716), 0.126 (0.001) and 0.098 (0.020) in the log transformed analysis. FL, SC and BP are all associated with increasing stoma appliance related prescription spend.
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