Chapter 23: Pancreatitis

The Burden of Digestive Diseases in the United States

James E. Everhart, M.D., M.P.H.

Pancreatitis is coded as acute or chronic, and the two are grouped together in this chapter, although acute pancreatitis has the greater burden of medical care and mortality.25 In 2004, there were 475,000 ambulatory care visits as first-listed diagnosis and 881,000 visits as all-listed diagnoses (Table 1). Rates of visits with pancreatitis as all-listed diagnoses increased moderately with age. Age-adjusted rates were 25 percent higher among blacks than whites and 52 percent higher among females than males. Pancreatitis was the seventh most commonly noted digestive disease diagnosis on hospitalization, just after peptic ulcer disease. Hospitalization rates increased with age and were 88 percent higher among blacks and 11 percent higher among males. Rates of both ambulatory care visits and hospitalizations with pancreatitis increased from the 1980s to 2004 (Figure 1). In particular, the rate of hospital discharges with a pancreatitis diagnosis increased 62 percent between 1988 and 2004.

In 2004, pancreatitis was the eleventh most common underlying cause of death from digestive diseases and the fifth most common nonmalignant cause, just after peptic ulcer disease. More than half of deaths occurred among persons age 65 years and older (Table 2).

Pancreatitis ranked eighth among all digestive diseases in YPLL prior to age 75, with about 43,000 years or 12.3 years per death. Death rates increased with age and were higher among blacks than whites and men than women. Mortality rates fell slightly from 1979 to 2004 (Figure 2), with the rate for underlying cause having fallen 15 percent over this 25-year period.

According to the Verispan database of retail pharmacy prescriptions (Appendix 2), in 2004, the total number of prescriptions for pancreatitis was approximately 766,000 at a retail cost of roughly $88.6 million (Table 3). Pancreatic enzyme replacements constituted 60.3 percent of the prescriptions and 84.8 percent of the cost. All the other prescriptions were analgesics or antiemetic agents.

References

Table 1. Pancreatitis: Number and Age-Adjusted Rates of Ambulatory Care Visits and Hospital Discharges With First-Listed and All-Listed Diagnoses by Age, Race, and Sex in the United States, 2004

Source: National Ambulatory Medical Care Survey (NAMCS) and National Hospital Ambulatory Medical Care Survey (NHAMCS) (3-year average, 2003–2005), and Healthcare Cost and Utilization Project Nationwide Inpatient Sample (HCUP NIS)

Demographic Characteristics Ambulatory Care Visits First-Listed Diagnosis Number in Thousands Ambulatory Care Visits First-Listed Diagnosis Rate per 100,000 Ambulatory Care Visits All-Listed Diagnosis Number in Thousands Ambulatory Care Visits All-Listed Diagnosis Rate per 100,000 Hospital Discharges First-Listed Diagnosis Number in Thousands Hospital Discharges First-Listed Diagnosis Rate per 100,000 Hospital Discharges All-Listed Diagnosis Number in Thousands Hospital Discharges All-Listed Diagnosis Rate per 100,000
AGE (Years)
Under 15
3 5 5 8
AGE (Years)
15–44
153 121 304 241 99 78 152 120
AGE (Years)
45–64
219 310 354 500 104 147 171 242
AGE (Years)
65+
101 279 222 611 72 197 127 349
Race
White
396 160 721 294 194 78 318 128
Race
Black
77 213 129 368 46 136 81 241
Sex
Female
306 199 545 355 136 87 228 145
Sex
Male
169 116 336 234 140 100 226 161
Total 475 162 881 300 277 94 454 155

Figure 1. Pancreatitis: Age-Adjusted Rates of Ambulatory Care Visits and Hospital Discharges With All–Listed Diagnoses in the United States, 1979–2004

The rate of ambulatory care visits over time (age-adjusted to the 2000 U.S. population) is shown by 3-year periods (except for the first period which is 2 years), between 1992 and 2005 (beginning with 1992–1993 and ending with 2003–2005). Ambulatory care visits per 100,000 increased from 241 in 1992-1993 to 296 in 2003-2005. The hospitalization rate per 100,000 was 84.7 in 1979 and was relatively stable through 1988, after which it increased to 134 in 2004.
Source: National Ambulatory Medical Care Survey (NAMCS) and National Hospital Ambulatory Medical Care Survey (NHAMCS) (averages 1992–1993, 1994–1996, 1997–1999, 2000–2002, 2003–2005), and National Hospital Discharge Survey (NHDS)

Table 2. Pancreatitis: Number and Age-Adjusted Rates of Deaths and Years of Potential Life Lost (to Age 75) by Age, Race, and Sex in the United States, 2004

Source: Vital Statistics of the United States

Demographic Characteristics Underlying Cause Number of Deaths Underlying Cause Rate per 100,000 Underlying Cause Years of Potential Life Lost in Thousands Underlying or Other Cause Number of Deaths Underlying or Other Cause Rate per 100,000
AGE (Years)
Under 15
15 0.0 1.0 26 0.0
AGE (Years)
15–44
467 0.4 17.8 888 0.7
AGE (Years)
45–64
1,044 1.5 21.0 2,222 3.1
AGE (Years)
65+
1,953 5.4 3.0 4,005 11.0
Race
White
2,838 1.1 31.7 5,739 2.2
Race
Black
557 1.8 9.7 1,210 4.0
Sex
Female
1,549 0.9 13.0 3,239 1.9
Sex
Male
1,931 1.5 29.8 3,903 3.0
Total 3,480 1.2 42.8 7,142 2.4

Figure 2. Pancreatitis: Age-Adjusted Rates of Death in the United States, 1979–2004

Mortality rates fell slightly from 1979 to 2004. Underlying-cause mortality per 100,000 declined from 1.36 in 1979 to 1.15 in 2004. All-cause mortality per 100,000 declined from 3.21 in 1979 to 2.36 in 2004.
Source: Vital Statistics of the United States

Table 3. Pancreatitis: Costliest Prescriptions

Source: Verispan

DRUG Prescription (#) Prescription Retail Cost Cost
Amylase/Lipase/Protease 343,519 44.8% $54,085,858 61.1%
Pancrelipase 118,277 15.4 21,041,841 23.8
Hydrocodone/Acetaminophen 171,121 22.3 6,524,330 7.4
Oxycodone/Acetaminophen 76,199 9.9 3,970,182 4.5
Oxycodone 25,097 3.3 2,629,763 3.0
Promethazine 20,846 2.7 184,599 0.2
Codeine/Acetaminophen 8,808 1.1 89,625 0.1
Acetyl Salicylic Acid/Oxycodone 964 0.1 30,971 0.0
Meperidine 1,139 0.1 21,709 0.0
Prochlorperazine 394 0.0 3,834 0.0
Total 766,364 100.0% $88,582,712 100.0%
Last Reviewed January 2008