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Table 3 Associations between background variables and costs of health care in the six-month follow up period.

From: How does comorbidity affect cost of health care in patients with irritable bowel syndrome? A cohort study in general practice

Variables Costs for consultations Costs for hospitalisations Costs for medications Costs for alternative products Total costs Total IBS related costs
Age 0.841 0.579 0.001 0.182 0.003 0.498
Gender (female) 0.692 0.612 0.610 0.125 0.965 0.192
Education > 10 yrs 0.406 0.465 0.008 0.126 0.251 0.929
Smoker 0.631 0.725 0.607 0.301 0.567 0.531
Alcohol use 0.687 0.046 0.854 0.834 0.552 0.813
Reflux/Dyspepsia 0.261 0.543 0.309 0.388 0.385 0.427
IBS-symptom score 0.148 0.767 0.001 0.838 0.075 0.059
Somatic symptom score (SHC-17) 0.001 0.713 0.001 0.002 0.001 0.524
Organic disease score 0.003 0.014 0.001 0.434 0.001 0.914
Neurotissism 0.151 0.796 0.076 0.006 0.224 0.288
Health anxiety 0.008 0.873 0.024 0.105 0.132 0.892
Mood disorder (SCL 10) 0.292 0.975 0.050 0.001 0.140 0.338
  1. The results are given as p-values with significant values in bold. For all background variables higher values were associated with increased costs.