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Table 3 Characterization of gastrointestinal symptoms

From: Gastrointestinal symptoms among endometriosis patients—A case-cohort study

  Patients with endometriosis n = 109
Onset of gastrointestinal symptoms (n, %), missing value = 19  
 Gradual 70, 64.2
 Rapid 20, 18.3
Duration of gastrointestinal complaints (years) 8.00 (4.00–15.50)
The evolution of symptoms over time (n, %), missing value = 17  
 Constant complaints 14, 12.8
 Intermittent complaints 45, 41.3
 Progressively worse 33, 30.3
Gastrointestinal complaints during the last year (Yes/No) 93/16
Ability to differentiate between pain due to endometriosis and from the gastrointestinal tract (Yes/No/Unknown) 53/32/24
Has changed occupation because of complaints (Yes/No/Unknown) 5/101/3
Relatives with similar complaints (Yes/No/Unknown) 46/47/16
Experience a trigger for the complaints (Yes/No/Unknown) 35/55/19
Triggers for gastrointestinal complaints (n)  
 Menstruation 13
 Stress 6
 Abdominal surgery 4
 Cessation of combined oral contraceptives 4
 Endometriosis 3
 Side-effects from medications 2
 Food 1
 Sexual activity 1
 Pregnancy 1
 Gastrointestinal infection 1
Diagnosis (n)  
 Have not been given any name 21
 Endometriosis 16
 IBS 16
 Gastritis 6
 Sensitive stomach/bowels 3
 Chronic constipation 2
 Reflux, dyspepsia 2
 Stress 1
 Allergy 1
 Bowel spasm 1
 Stricture 1
  1. IBS = irritable bowel syndrome, n, % = number and percentage of subjects. Patients presented can have more than one trigger for gastrointestinal symptoms and more than one diagnosis ascribed to the symptom. Values are given as median [interquartile range (IQR)] and number, %