Ostomy Statistics: The $64,000 Question
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T his we know: The Queen "Mum" had one - as did Senator Hubert Humphrey, Speaker of the House Thomas "Tip" O'Neill, and actress Loretta Young. Contemporary notables include Rolf Benirschke, Pope John Paul II, actress Barbara Barrie, President George W. Bush's brother Marvin, and professional golfer Al Geiberger. Yet after more than 50 years and despite the bravery of these previously-mentioned well-known people, the demographics of the American ostomy population and the number and types of new surgeries performed each year remain elusive.
A possible explanation of this dilemma may be due, in part, to the reporting and coding mechanisms our country uses to track medical procedures. What specific codes most providers use to bill for ostomy-related conditions and procedures is unclear, because many codes could be applicable. For example, the International Classification of Diseases (ICD-9-CM) coding system codes 153-154 and 197.5 are applicable for malignant neoplasm of large intestine and rectum. ICD-9-CM codes 520 through 579 are listed for diseases of digestive system and 580-629 for disease of genitourinary system. Several DRGs could be used to bill for services provided to inpatients admitted for treatment of ostomy-related complications or new surgeries. Tracking these data is difficult because the coding systems are not always disease specific and do not indicate whether a surgery is temporary or permanent or if the submission is for a patient previously reported by the same or another provider. More recent electronic tracking mechanisms and proposed changes to coding systems are helping make these data a bit clearer.
Number of Patients
Currently available estimates of the number of patients vary. One report estimates that 450,000 people in our country currently have a stoma and that 120,000 new surgeries are performed each year.1 The United Ostomy Association estimates that slightly more than 500,000 Americans now have some type of stoma. Another market research report2 stated there were 800,000 ostomy patients in the US in 2000, and that the number would grow at an annual rate of 3%.
In 1998, two studies3,4 attempted to clarify the average age of someone with a stoma, as well as how the population was segmented by surgery type. The studies revealed the average age of a person with a colostomy to be 70.6 years, an ileostomy 67.8 years, and a urostomy 66.6 years. Using these numbers, the average age of an American with an ostomy is about 68.3 years; he or she is, therefore, a Medicare beneficiary.
These same studies revealed an equal distribution between the three major types of ostomy surgeries: colostomy 36.1%, ileostomy 32.2%, and urostomy 31.7%. This was an interesting finding because it has long been assumed that ileostomy and colostomy surgeries outnumbered urinary stomas. Other types of sphincter-saving surgeries were not included in these surveys.
No definitive gender data are currently available for the ostomy population. However, if the average age of the person with an ostomy is 68.3 years and the average life expectancy of American women is higher than that of men, it could be presumed that more women than men have an ostomy. In fact, a 1998 consumer survey of more than 1,400 people with an ostomy showed that 57% were female.5 This correlates with data from the Centers for Medicare and Medicaid Services that the prototypical Medicare resident in either home care or a nursing home is female. Additionally, the American Cancer Society6 estimates that approximately 147,500 new cases of colorectal cancer will be diagnosed this year, affecting women slightly more than men (74,700 versus 72,800). However, after the age of 50, the incidence for men seems to increase slightly.
1. The Oryx Group. Ostomy surgery in the United States. February 1997. Proprietary data on file. ConvaTec, a Bristol-Myers Squibb Company.
2. Frost predicts steady growth for ostomy market. Home Care Monday. June 3,2002. Available at: http://june.homecaremonday.com/june_3_2002/index.htm. Accessed May 8, 2003.
3. Cooke C. Analysis of variations in consumer usage of ostomy appliances (95-96). 1998. Proprietary data on file. United Ostomy Association.
4. Cooke C. Ostomy consumer reimbursement survey 1998. Proprietary data on file. United Ostomy Association.
5. United Ostomy Survey. R. Cohn Research, 1998. Proprietary data on file. United Ostomy Association.
6. American Cancer Society. Available at: www.cancer.org. Accessed May 6, 2003.
7. United States Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics. The National Home and Hospice Care Survey; 1996 Summary, Series 13. Data from National Health Survey #141. DHHS Publication (PHS) 99-1712. Available at: www.cc.gov/nchs. Accessed May 6, 2003.