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Table 1

Diagnostic categories among control patients

ICD-9aDiagnosisn%
210–229 Benign neoplasms 56 11.9 
240–279 Endocrine, metabolic, and immunity disorders 1.5 
280–289 Diseases of the blood and blood-forming organs 10 2.1 
345 Epilepsy 0.2 
363–374 Disorders of the eye and adnexa 0.9 
382–388 Diseases of the ear and mastoid process 0.4 
454 Varicose veins of lower extremities 0.2 
486 Pneumonia (organism unspecified) 0.6 
523–529 Diseases of oral cavity, salivary glands, and jaws 26 5.6 
550–551 Hernia of abdominal cavity 0.6 
555–558 Noninfectious enteritis and colitis 0.4 
562–569 Other diseases of intestines and peritoneum 0.4 
592–599 Other diseases of the urinary system 1.9 
600–608 Diseases of male genital organs 53 11.3 
610–611 Disorders of breast 36 7.7 
614–616 Inflammatory disease of female pelvic organs 0.6 
617–627 Other disorders of female genital tract 1.7 
682–709 Diseases of the skin and subcutaneous tissue 44 9.4 
713–719 Arthropathies and related disorders 1.3 
721–724 Dorsopathies 1.3 
726–729 Rheumatism (excluding the back) 0.4 
730–739 Osteopathies, chondropathies, and acquired musculoskeletal deformities 10 2.1 
752–759 Congenital anomalies 0.4 
777 Perinatal disorders of digestive system 18 3.8 
782–789 Symptoms of ill-defined conditions 1.5 
799 Other ill-defined and unknown causes of morbidity and mortality 140 29.9 
802–872 Injury 0.9 
927–959 Late effects of injuries, poisonings, toxic effects, and other external causes 0.9 
ICD-9aDiagnosisn%
210–229 Benign neoplasms 56 11.9 
240–279 Endocrine, metabolic, and immunity disorders 1.5 
280–289 Diseases of the blood and blood-forming organs 10 2.1 
345 Epilepsy 0.2 
363–374 Disorders of the eye and adnexa 0.9 
382–388 Diseases of the ear and mastoid process 0.4 
454 Varicose veins of lower extremities 0.2 
486 Pneumonia (organism unspecified) 0.6 
523–529 Diseases of oral cavity, salivary glands, and jaws 26 5.6 
550–551 Hernia of abdominal cavity 0.6 
555–558 Noninfectious enteritis and colitis 0.4 
562–569 Other diseases of intestines and peritoneum 0.4 
592–599 Other diseases of the urinary system 1.9 
600–608 Diseases of male genital organs 53 11.3 
610–611 Disorders of breast 36 7.7 
614–616 Inflammatory disease of female pelvic organs 0.6 
617–627 Other disorders of female genital tract 1.7 
682–709 Diseases of the skin and subcutaneous tissue 44 9.4 
713–719 Arthropathies and related disorders 1.3 
721–724 Dorsopathies 1.3 
726–729 Rheumatism (excluding the back) 0.4 
730–739 Osteopathies, chondropathies, and acquired musculoskeletal deformities 10 2.1 
752–759 Congenital anomalies 0.4 
777 Perinatal disorders of digestive system 18 3.8 
782–789 Symptoms of ill-defined conditions 1.5 
799 Other ill-defined and unknown causes of morbidity and mortality 140 29.9 
802–872 Injury 0.9 
927–959 Late effects of injuries, poisonings, toxic effects, and other external causes 0.9 
a

ICD, International Classification of Diseases.

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