Prevalence and Incidence of Diverticular Disease
Prevalance of Diverticular Disease:
2 million people in the USA 1983-87 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994) ... see also overview of Diverticular Disease.
Prevalance Rate:
approx 1 in 136 or 0.74% or 2 million people in USA [Source statistic for calcuation: "2 million people in the USA 1983-87 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)" -- see also general information about data sources]
Diverticular Disease Prevalence: Book Excerpts
Incidence (annual) of Diverticular Disease:
300,000 new cases in the USA 1987 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994) ... see also overview of Diverticular Disease.
Incidence Rate:
approx 1 in 906 or 0.11% or 300,000 people in USA [Source statistic for calcuation: "300,000 new cases in the USA 1987 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)" -- see also general information about data sources]
Incidence extrapolations for USA for Diverticular Disease:
300,000 per year,
25,000 per month,
5,769 per week,
821 per day,
34 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "300,000 new cases in the USA 1987 (Digestive diseases in the United States: Epidemiology and Impact – NIH Publication No. 94-1447, NIDDK, 1994)" -- see also general information about data sources]
Prevalance of Diverticular Disease:
About half of all Americans age 60 to 80, and almost everyone over age 80,
have diverticulosis.
(Source: excerpt from Diverticulosis and Diverticulitis: NIDDK)
...
Prevalence: 2 million people (1983-87) (Source: excerpt from Digestive Diseases Statistics: NIDDK)
Prevelance of Diverticular Disease discussion:
Actually, the majority of
Americans over age 60 have diverticulosis, but only a small percentage
have symptoms or complications. Diverticulosis is a condition in which
little sacs—or out-pouchings—called diverticula, develop in the wall of
the colon. These tend to appear and increase in number with age. (Source: excerpt from Facts and Fallacies About Digestive Diseases: NIDDK)
Incidence of Diverticular Disease:
Incidence: 300,000 new cases (1987) (Source: excerpt from Digestive Diseases Statistics: NIDDK)
Incidence statistics for Diverticular Disease:
The following statistics relate to the incidence of Diverticular Disease:
More Statistics about Diverticular Disease:
Deaths and related statistics
Hospitalization statistics
All statistics for Diverticular Disease
Prevalence/Incidence of Diverticular Disease: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Diverticular Disease.
Diverticular disease:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
In diverticulitis, retained undigested food mixed with bacteria accumulates in the diverticular sac, forming a hard mass (fecalith). This substance cuts off the blood supply to the thin walls of the sac, making them more susceptible to attack by colonic bacteria. Inflammation follows, possibly leading to perforation, abscess, peritonitis, obstruction, or hemorrhage. Occasionally, the inflamed colon segment may produce a fistula by adhering to the bladder or other organs.
Diverticula probably result from high intraluminal pressure on areas of weakness in the GI wall, where blood vessels enter. Diet may also be a contributing factor because insufficient fiber reduces fecal residue, narrows the bowel lumen, and leads to higher intra-abdominal pressure during defecation. The prevalence of diverticulosis in Western industrialized nations, where processing removes much of the roughage from foods, supports this theory. Diverticular disease is most prevalent in those older than age 40.
The incidence of diverticular disease increases with age, but 20% of patients are younger than age 50. Right-sided diverticulitis is most common in Asians, accounting for 75% of cases in that ethnic group. Left-sided diverticulitis is more common in Western countries, where it accounts for 70% of cases.
ELDER TIP About 50% of older adults develop diverticulosis. In elderly patients, a rare complication of diverticulosis (without diverticulitis) is hemorrhage from colonic diverticula. Such hemorrhage is usually mild to moderate and easily controlled, but may occasionally be massive and life-threatening.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Esophageal diverticula:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Esophageal diverticula are due to primary muscular abnormalities that may be congenital or to inflammatory processes adjacent to the esophagus. Zenker’s diverticulum occurs when the pouch results from increased intraesophageal pressure; traction diverticulum occurs when the pouch is pulled out by adjacent inflamed tissue or lymph nodes. Some authorities classify all diverticula as traction diverticula.
Zenker’s diverticulum results from developmental muscular weakness of the posterior pharynx above the border of the cricopharyngeal muscle. The pressure of swallowing aggravates this weakness, as does contraction of the pharynx before relaxation of the sphincter. A midesophageal (traction) diverticulum is a response to scarring and pulling on esophageal walls by an external inflammatory process such as tuberculosis. An epiphrenic diverticulum (rare) is generally right-sided and usually accompanies an esophageal motor disturbance, such as esophageal spasm or achalasia. It’s thought to be caused by traction and pulsation.
Most diverticula occur in middle-aged and elderly patients. Zenker’s diverticula most commonly in patients older than age 50 and are especially prevalent in patients in their 70s and 80s.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Meckel Diverticulum:
Meckel Diverticulum - epidemiology
(The 5-Minute Pediatric Consult)
- Meckel diverticulum was 1st described by Johann Meckel in 1809.
- A remnant of the embryonic yolk sac found in ~2% of all infants
- Although the presence of Meckel diverticulum is 2% in the population, the rarity of this anomaly in clinical practice is that only 4–6.5% of patients are symptomatic.
- The development of symptoms seems to be age related, with the peak incidence being early childhood (2 years).
- 80% of all patients requiring surgery were <10 years of age, and nearly 50% were <2 years of age.
Meckel Diverticulum - incidence
- Meckel diverticulum tends to be more common in males with a male/female ratio of 3:2, and also with males having more symptomatic diverticula.
- These have also been associated with several other congenital anomalies that include:
- Anorectal atresia (11%)
- Esophageal atresia (12%)
- Minor omphalocele (25%)
- Cardiac malformations
- Exophthalmos
- Cleft palate
- Annular pancreas
- Some central nervous system malformations
>>
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Diverticular Disease usually refers to the estimated population
of people who are managing Diverticular Disease at any given time.
The term 'incidence' of Diverticular Disease refers to the annual diagnosis rate,
or the number of new cases of Diverticular Disease diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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