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HCUP Facts and Figures
Statistics on Hospital-Based Care in the United States, 2008
 
TABLE OF CONTENTS

HIGHLIGHTS

INTRODUCTION

HCUP PARTNERS

1. OVERVIEW

2. DIAGNOSES

3. PROCEDURES

4. COSTS

5. MHSA

SOURCES/METHODS

DEFINITIONS

FOR MORE INFO

ACKNOWLEDGMENTS

CITATION

FACTS & FIGURES 2008 PDF
EXHIBIT 2.3 Most Frequent Principal Diagnoses by Age (PDF)

Number of Discharges, Percent Distribution, and Growth of the Most Frequent Principal Diagnoses for Inpatient Hospital Stays by Age, 1997 and 2008
AGE GROUP AND PRINCIPAL CCS DIAGNOSIS NUMBER OF DISCHARGES IN THOUSANDS PERCENT OF AGE-SPECIFIC TOTAL DISCHARGES CUMULATIVE GROWTH
1997 2008 1997 2008 1997-2008
All ages, total discharges* 34,679 39,885     15%
‹1 year, total discharges 4,426 4,775‡ 100.0% 100.0% 8
Liveborn infant 3,776 4,247 85.3 88.9 12
Acute bronchitis 108 82 2.4 1.7 -24
Hemolytic jaundice and perinatal jaundice 33 41 0.7 0.9 24
Pneumonia 55 34 1.3 0.7 -39
Short gestation, low birth weight, and fetal growth retardation 22 20‡ 0.5 0.4 -10
1-17 years, total discharges 1,821 1,574‡ 100.0 100.0 -14
Pneumonia 135 110 7.4 7.0 -19
Asthma 159 103 8.7 6.5 -35
Mood disorders 64 83‡ 3.5 5.2 29
Appendicitis and other appendiceal conditions 65 75‡ 3.6 4.8 15
Skin and subcutaneous tissue infections 29 57 1.6 3.6 97
18-44 years, total discharges 9,444 10,026‡ 100.0 100.0 6
Trauma to vulva and perineum due to childbirth 676 787 7.2 7.8 17
Previous C-section 270 529 2.9 5.3 96
Mood disorders 335 415 3.5 4.1 24
Normal pregnancy and/or delivery 511 268 5.4 2.7 -48
Hypertension complicating pregnancy, childbirth and the puerperium 172 217 1.8 2.2 26
45-64 years, total discharges 6,496 9,504 100.0 100.0 46
Coronary atherosclerosis 526 385 8.1 4.1 -27
Osteoarthritis 105 368 1.6 3.9 249
Non-specific chest pain 242 349 3.7 3.7 44
Spondylosis, intervertebral disc disorders, and other back problems 190 287 2.9 3.0 51
Pneumonia 199 255 3.1 2.7 28
65-84 years, total discharges 10,121 10,761‡ 100.0 100.0 6
Congestive heart failure 581 510 5.7 4.7 -12
Osteoarthritis 281 486 2.8 4.5 73
Pneumonia 514 449 5.1 4.2 -13
Coronary atherosclerosis 741 447 7.3 4.2 -40
Cardiac dysrhythmias 333 415 3.3 3.9 25
85+ years, total discharges 2,362 3,196 100.0 100.0 35
Congestive heart failure 202 246 8.6 7.7 22
Pneumonia 197 199‡ 8.3 6.2 1
Septicemia 76 149 3.2 4.7 95
Urinary tract infections 75 135 3.2 4.2 81
Cardiac dysrhythmias 70 125 3.0 3.9 79
* Includes a small number of discharges (50,000 or 0.1 percent) with missing age.
‡ 2008 discharges are not statistically different from 1997 discharges at p‹0.05.
Source: AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample, 1997 and 2008.

 

The principal diagnoses for hospitalizations generally varied by age, although some conditions were frequent among all ages.

Infants, children and young adults:

  • Pregnancy, childbirth, and liveborn infants:
    • In 2008, most discharges for children under one year old (89 percent) were for liveborn infants, which increased 12 percent between 1997 and 2008.
    • Among 18-44 year olds, previous C-sections increased 96 percent between 1997 and 2008, while normal pregnancy and/or delivery fell 48 percent.
  • Asthma stays declined 35 percent among children 1-17 years between 1997 and 2008, while stays for skin and subcutaneous tissue infections increased 97 percent.
  • Appendicitis accounted for 4.8 percent of discharges among children 1-17 years.
  • Mood disorders was the third most common diagnosis for children 1-17 and adults 18-44 years.

Older adults:

  • Cardiovascular conditions were the most common diagnoses for adults over 44 years old. However, specific diagnoses differed between age groups for older adults:
    • Coronary atherosclerosis accounted for 4.1 percent of all discharges for adults 45-64; these stays declined by 27 percent between 1997 and 2008. This condition also ranked fourth for 65-84 year olds (4.2 percent of stays in 2008), with stays declining 40 percent between 1997 and 2008.
    • Congestive heart failure (CHF) was the most common condition for adults 65-84 and 85 and older. In 2008, CHF accounted for 4.7 percent of all stays among adults 65-84 and 7.7 percent of all stays among adults 85 and older.
    • Cardiac dysrhythmias was the reason for 125,000 hospitalizations (3.9 percent) in 2008 among adults age 85 years and older, an increase of 79 percent since 1997.
  • Among adults 85 and older, hospitalizations for septicemia (up 95 percent) and urinary tract infections (up 81 percent) increased at more than twice the rate of all hospitalizations for this age group between 1997 and 2008.
  • Musculoskeletal conditions:
    • Osteoarthritis more than tripled among adults 45-64 and increased 73 percent among adults 65-84.
    • Spondylosis, intervertebral disc disorders, and other back problems increased 51 percent for 45-64 year olds between 1997 and 2008.

All patients:

  • Pneumonia was a top five condition for all age groups except 18-44 year olds:
    • Hospital stays for pneumonia declined among children (a drop of 39 percent for children less than one and a 19-percent decline for children 1-17 years).
    • Pneumonia stays rose among 45-64 year olds (28 percent), but fell among 65-84 year olds (down 13 percent).
    • The number of pneumonia stays remained relatively stable for adults 85 years and older.


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Internet Citation: Facts and Figures 2008. Healthcare Cost and Utilization Project (HCUP). October 2010. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/reports/factsandfigures/2008/exhibit2_3.jsp.
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