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Table 1 Patient characteristics

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

  Patients with endometriosis n = 109
Age (years) 36.78 ± 7.39
BMI (kg/m2), missing value = 4 24.00 (22.00–26.00)
Marital status (n, %), missing value = 1  
 Living alone 36, 33.0
 Married or living with a partner 70, 64.2
 Living with parents 2, 1.8
Education (n, %)  
 Not completed elementary school 1, 0.9
 Completed elementary school 2, 1.8
 Completed secondary school 20, 18.3
 More than a year of further education after secondary school 24, 22.0
 Degree from university or college 62, 56.9
Occupation (n, %), missing value = 1  
 Work full time 62, 56.9
 Work 99–51 % 22, 20.2
 Work 1–50 % 8, 7.3
 On sick-leave 5, 4.6
 Retired 1, 0.9
 Unemployed 1, 0.9
 Student 9, 8.3
Smoking habits (n, %)  
 Smoke regularly 8, 7.3
 Smoke occasionally 10, 9.2
 Do not smoke, but have been a smoker 21, 19.3
 Have never smoked 70, 64.2
Snuff habits (n, %)  
 Snuff regularly 6, 5.5
 Do not snuff but have been a regular snuff user 3, 2.8
 Have never used snuff 100, 91.7
Alcohol use (n, %)  
 Less than one standard glass a week 68, 62.4
 1–4 standard glasses a week 31, 28.4
 5–9 standard glasses a week 10, 9.2
Physical exercise (n, %)  
 No time 18, 16.5
 Less than 30 minutes a week 16, 14.7
 30–90 minutes a week 37, 33.9
 More than 90 minutes a week 38, 34.9
  1. BMI = body mass index; n, % = number and percentage of patients. One standard glass of alcohol contains 12 grams of pure alcohol. Physical exercise was defined as physical activity that results in shortness of breath. Values are given as mean ± standard deviation, median [interquartile range (IQR)] and number, %