Volume 16, Number 12—December 2010
Historical Review
Mortality Risk Factors for Pandemic Influenza on New Zealand Troop Ship, 1918
Jennifer A. Summers
, Nick Wilson, Michael G. Baker, and G. Dennis Shanks
, Nick Wilson, Michael G. Baker, and G. Dennis Shanks
Table 2
Multivariate analyses of risk for death during pandemic influenza outbreak onboard His Majesty’s New Zealand Transport Tahiti, 1918*
| aOR (95% CI) | p value | aOR (95% CI) | p value | ||
|---|---|---|---|---|---|
| Demographic and sociodemographic | |||||
| Age, continuous | 1.03 (1.00–1.06) | 0.071 | 1.04 (1.00–1.07) | 0.025 | |
| Military rank, officer plus NCO vs. all other ranks§ | 0.51 (0.24–1.12) | 0.093 | 0.49 (0.23–1.08) | 0.077 | |
| Occupational class based on prewar occupation, groups 7–9 vs. groups 1–6¶ | 0.72 (0.44–1.18) | 0.196 | 0.83 (0.50–1.38) | 0.468 | |
| Rurality score, continuous |
0.97 (0.87–1.08) |
0.558 |
1.00 (0.90–1.12) |
0.943 |
|
| Other | |||||
| Military unit, 40th Reinforcements New Zealand Field Artillery vs all other units combined | 3.04 (1.59–5.82) | 0.001 |
*CI, confidence interval; aOR, adjusted odds ratio for death during the outbreak; NCO, noncommissioned officer.
†Hosmer-Lemeshow χ2 8.47, degrees of freedom 8, p = 0.389.
‡Hosmer-Lemeshow χ2 13.06, degrees of freedom 8, p = 0.110.
§Healthcare workers were included in other ranks.
¶Groups 1–6 indicate higher status occupations.
Page created: August 28, 2011
Page updated: August 28, 2011
Page reviewed: August 28, 2011
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.