0
Clinical Investigations in Critical Care |

The Effect of Body Mass Index on Patient Outcomes in a Medical ICU*

Daniel E. Ray, MD, MS, FCCP; Stephen C. Matchett, MD; Kathy Baker, RN; Thomas Wasser, PhD; Mark J. Young, MD
Author and Funding Information

*From Medical Critical Care (Drs. Ray and Matchett, and Ms. Baker), Department of Health Studies (Dr. Wasser), and Health Studies Unit (Dr. Young), Lehigh Valley Hospital, Allentown, PA.

Correspondence to: Daniel E. Ray, MD, MS, FCCP, 1210 South Cedar Crest Blvd, Suite 2300, Allentown, PA 18103; e-mail: daniel.ray@lvh.com



Chest. 2005;127(6):2125-2131. doi:10.1378/chest.127.6.2125
Text Size: A A A
Published online

Study objectives: To examine the effect of patient body mass index (BMI) on outcome in intensive care.

Design: In a prospective study, the patients were classified into groups based on the calculated BMI, as follows: BMI < 19.0 (n = 350), ≥ 19.0 and < 25.0 (n = 663), ≥ 25.0 and < 29.9 (n = 585), ≥ 30.0 and < 40.0 (n = 396), and ≥ 40.0 (n = 154). Groups were compared by age, APACHE (acute physiology and chronic health evaluation) II score, mortality, ICU length of stay (LOS), hospital LOS, number receiving ventilation, and ventilator-days. Adverse events including nosocomial pneumonia, ventilator-days per patient, failed extubations, and line-related complications were recorded.

Setting: The study was conducted in a 9-bed medical ICU of a 650-bed tertiary care hospital.

Measurements: Height and weight were prospectively recorded for the first ICU admission during a hospital stay.

Results: Between January 1, 1997, and August 1, 2001, 2,148 of 2,806 patients admitted to the ICU had height and weight recorded. There were no differences in APACHE II score, mortality, ICU LOS, hospital LOS, number receiving ventilation, ventilator-days, average total cost, or average variable cost among the five groups. However, the severely obese patients were more frequently female and younger than those who were overweight and obese (p < 0.001). Adverse events were infrequent, but there were no differences between the obese/very obese compared with others.

Conclusion: BMI has minimal effects on ICU outcome after patients are admitted to a critical care unit.


Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Figures

Tables

References

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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

Sign In to Access Full Content

MEMBER & INDIVIDUAL SUBSCRIBER

Want Access?

NEW TO CHEST?

Become a CHEST member and receive a FREE subscription as a benefit of membership.

Individuals can purchase this article on ScienceDirect.

Individuals can purchase a subscription to the journal.

Individuals can purchase a subscription to the journal or buy individual articles.

Learn more about membership or Purchase a Full Subscription.

INSTITUTIONAL ACCESS

Institutional access is now available through ScienceDirect and can be purchased at myelsevier.com.

Related Content

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

Find Similar Articles
CHEST Journal Articles
  • CHEST Journal
    Print ISSN: 0012-3692
    Online ISSN: 1931-3543