We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Incidence of Community-Acquired Pneumonia Requiring Hospitalization Results of a Population-Based Active Surveillance Study in Ohio

Barbara J. Marston, MD; Joseph F. Plouffe, MD; Thomas M. File Jr, MD; Barbara A. Hackman, MS, MPH; Sara-Jane Salstrom; Harvey B. Lipman, PhD; Margarette S. Kolczak, PhD; Robert F. Breiman, MD
Arch Intern Med. 1997;157(15):1709-1718. doi:10.1001/archinte.1997.00440360129015.
Text Size: A A A
Published online


Background:  Pneumonia is the leading cause of death due to infectious diseases in the United States; however, the incidence of most infections causing community-acquired pneumonia in adults is not well defined.

Methods:  We evaluated all adults, residing in 2 counties in Ohio, who were hospitalized in 1991 because of community-acquired pneumonia. Information about risk factors, symptoms, and outcome was collected through interview and medical chart review. Serum samples were collected from consenting individuals during the acute and convalescent phases, and specific etiologic diagnoses were assigned based on results of bacteriologic and immunologic tests.

Results:  The incidence of community-acquired pneumonia requiring hospitalization in the study counties in 1991 was 266.8 per 100 000 population; the overall case-fatality rate was 8.8%. Pneumonia incidence was higher among blacks than whites (337.7/100 000 vs 253.9/ 100 000; P<.001), was higher among males than females (291.4 vs 244.8; P<.001), and increased with age (91.6/100 000 for persons aged <45 years, 277.2/ 100 000 for persons aged 45-64 years, and 1012.3/ 100 000 for persons aged ≥65 years; P<.001). Extrapolation from study incidence data showed the projected annual number of cases of community-acquired pneumonia requiring hospitalization in the United States to be 485 000. These data provide previously unavailable estimates of the annual number of cases that are due to Legionella species (8000-18 000), Mycoplasma pneumoniae (18 700-108 000), and Chlamydia pneumoniae (5890-49 700).

Conclusions:  These data provide information about the importance of community-acquired pneumonia and the relative and overall impact of specific causes of pneumonia. The study provides a basis for choosing optimal empiric pneumonia therapy, and allows interventions for prevention of pneumonia to be targeted at groups at greatest risk for serious illness and death.Arch Intern Med. 1997;157:1709-1718


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

510 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.