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Table 1 Morbidity in health survey and electronic health records and calculation of 95% confidence interval

From: Comparison of the information provided by electronic health records data and a population health survey to estimate prevalence of selected health conditions and multimorbidity

  Health survey (HS) Electronic health records (EHR) Ratio HS/EHR*
  % CI†95% % CI†95%  
Anaemia 7.3 [6.9 - 7.7] 4.6 [4.6- 4.6] 1.6
Asthma 6.1 [5.7- 6.5] 4.1 [4.1- 4.1] 1.5
Back pain 29.6 [28.9- 30.3] 13.6 [13.5- 13.6] 2.2
Cardiac disease 6.5 [6.1- 6.9] 6.6 [6.5- .6.6] 0.9
Cataracts 8.2 [7.8- 8.6] 3.2 [3.2- 3.3] 2.5
Cerebrovascular disease 1.8 [1.6- 2.0] 1.3 [1.3- 1.3] 1.4
Chronic allergies 16.2 [15.6- 16.8] 3.2 [3.1- 3.2] 5.1
Chronic constipation 9.4 [9.0- 9.9] 2.7 [2.7- 2.7] 3.5
COPD§ 6.2 [5.8- 6.6] 3.8 [3.7- 3.8] 1.6
Depression or anxiety 17.5 [16.9- 18.1] 15.9 [15.8- 15.9] 1.1
Diabetes mellitus 5.9 [5.5- 6.3] 7.6 [7.6- 7.7] 0.8
Haemorrhoids 12.7 [12.2- 13.2] 3.3 [3.3- 3.4] 3.8
Hypercholesterolemia 14.9 [14.4- 15.5] 9.8 [9.7- 9.8] 1.5
Hypertension 19.7 [19.1- 20.3] 20.4 [20.4- 20.5] 1.0
Mental disorders|| 2.6 [2.4- 2.9] 14.8 [14.8-14.9] 0.2
Migraine or frequent headaches 18.9 [18.3- 19.5] 5.2 [5.1- 5.2] 3.6
Myocardial infarction 2.2 [2.0- 2.4] 2.2 [2.1- 2.2] 1.0
Neck pain 27.4 [26.7- 28.1] 5.7 [5.7- 5.8] 4.8
Malignant tumours 3.0 [2.7- 3.3] 3.6 [3.6- 3.6] 0.8
Osteoarthritis, arthritis or rheumatism 22.7 [22.1- 23.4] 11.3 [11.2- 11.3] 2.0
Osteoporosis 5.6 [5.2- 6.0] 3.9 [3.8- 3.9] 1.4
Circulation disorders 20.0 [19.4- 20.6] 1.1 [1.0-1.1] 18.2
Peptic ulcers 5.8 [5.4- 6.2] 1.7 [1.7- 1.7] 3.4
Prostatic disorders 8.4 [7.8- 9.0] 9.1 [9.0- 9.1] 0.9
Skin diseases 7.5 [7.1- 7.9] 9.7 [9.7- 9.8] 0.8
Thyroidal diseases 4.4 [4.1- 4.7] 2.6 [2.6- 2.6] 1.7
Varicose veins 19.3 [18.7- 19.9] 5.6 [5.5- 5.6] 3.5
  1. *Ratio of HS and EHR prevalence. † CI: confidence interval. ‡ Except myocardial infarction. §Chronic obstructive pulmonary disease. || Except depression and anxiety. ¶ Excluding varicose veins.