Table 1

Diagnostic categories among control patients

ICD-9aDiagnosisn%
210–229Benign neoplasms5611.9
240–279Endocrine, metabolic, and immunity disorders71.5
280–289Diseases of the blood and blood-forming organs102.1
345Epilepsy10.2
363–374Disorders of the eye and adnexa40.9
382–388Diseases of the ear and mastoid process20.4
454Varicose veins of lower extremities10.2
486Pneumonia (organism unspecified)30.6
523–529Diseases of oral cavity, salivary glands, and jaws265.6
550–551Hernia of abdominal cavity30.6
555–558Noninfectious enteritis and colitis20.4
562–569Other diseases of intestines and peritoneum20.4
592–599Other diseases of the urinary system91.9
600–608Diseases of male genital organs5311.3
610–611Disorders of breast367.7
614–616Inflammatory disease of female pelvic organs30.6
617–627Other disorders of female genital tract81.7
682–709Diseases of the skin and subcutaneous tissue449.4
713–719Arthropathies and related disorders61.3
721–724Dorsopathies61.3
726–729Rheumatism (excluding the back)20.4
730–739Osteopathies, chondropathies, and acquired musculoskeletal deformities102.1
752–759Congenital anomalies20.4
777Perinatal disorders of digestive system183.8
782–789Symptoms of ill-defined conditions71.5
799Other ill-defined and unknown causes of morbidity and mortality14029.9
802–872Injury40.9
927–959Late effects of injuries, poisonings, toxic effects, and other external causes40.9
  • a ICD, International Classification of Diseases.