Volume 18, Number 2—February 2012
CME ACTIVITY - Research
Invasive Pneumococcal Disease and Pandemic (H1N1) 2009, Denver, Colorado, USA
George E. Nelson
, Kenneth A. Gershman, David L. Swerdlow, Bernard W. Beall, and Matthew R. Moore
, Kenneth A. Gershman, David L. Swerdlow, Bernard W. Beall, and Matthew R. Moore
Table 2
Severity of illness for patients with invasive pneumococcal disease, by age group, Denver, Colorado, USA, February and October 2009*
| Characteristic | No. (%) patients with pandemic (H1N1) 2009, Oct 2009, n = 58 | No. (%) patients with seasonal influenza, Feb 2009, n = 45 | p value |
|---|---|---|---|
| Age 0–19 y | |||
| Total | 9 | 3 | |
| Hospitalized† | 8 (89) | 2 (67) | 0.461 |
| Admitted to ICUठ| 1 (13) | NA | NC |
| Died | 0 | 0 | NC |
| Age 20–39 y | |||
| Total | 10 | 6 | |
| Hospitalized | 7 (70) | 5 (83) | 0.551 |
| Admitted to ICU | 6 (86) | NA | NC |
| Died | 0 | 0 | NC |
| Age 40–59 y | |||
| Total | 26 | 17 | |
| Hospitalized | 26 (100) | 13 (76) | 0.168 |
| Admitted to ICU | 8 (31) | NA | NC |
| Died | 3 | 1 | 0.532 |
| Age >60 y | |||
| Total | 13 | 19 | |
| Hospitalized | 13 (100) | 16 (84)¶ | NC¶ |
| Admitted to ICU | 4 (31) | NA | NC |
| Died | 4 | 3 | 0.354 |
| Total | |||
| Hospitalized | 54 (93) | 36 (80) | 0.536 |
| Not hospitalized | 4 (7) | 2 (4) | |
| Data missing | 0 | 7 (16) | |
| Admitted to ICU | 19 (33) | NA | NC |
| Died | 7 (12) | 4 (9) | 0.602 |
*ICU, intensive care unit; NA, not available; NC, not calculated.
†Denominator for percentage of hospitalized cases is total case-patients for each age group.
‡Percentage of those admitted to ICU is percentage of hospitalized case-patients for each age group.
§Includes data from supplemental case report form, not available for prior years.
¶Three case-patients with unknown hospitalization information. Of known case-patients, 100% were hospitalized.
Page created: January 26, 2012
Page updated: January 26, 2012
Page reviewed: January 26, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.