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Volume 17, Number 8—August 2011

Dispatch

Pandemic (H1N1) 2009–associated Deaths Detected by Unexplained Death and Medical Examiner Surveillance

Christine H. LeesComments to Author , Catherine Avery, Ryan Asherin, Jean Rainbow, Richard Danila, Chad Smelser, Ann Schmitz, Stephen Ladd-Wilson, Kurt B. Nolte, Kayla Nagle, and Ruth Lynfield
Author affiliations: Author affiliations: Minnesota Department of Health, St. Paul, Minnesota, USA (C.H. Lees, J. Rainbow, R. Danila, K. Nagle, R. Lynfield); New Mexico Department of Health, Santa Fe, New Mexico, USA (C. Avery, C. Smelser); Oregon Public Health Department, Portland, Oregon, USA (R. Asherin, S. Ladd-Wilson); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A. Schmitz); University of New Mexico School of Medicine, Albuquerque, New Mexico, USA (K.B. Nolte)

Main Article

Table 1

Descriptive characteristics of pandemic (H1N1) 2009–associated deaths, by surveillance program, Minnesota, New Mexico, and Oregon, April–December 2009

Characteristic Hospital surveillance decedents, n = 160 UNEX/Med-X decedents, n = 34 p value†
State
Minnesota 50 (76) 16 (24)
New Mexico 42 (81) 10 (19)
Oregon
68 (89)
8 (11)
0.09‡
Influenza type§
Pandemic (H1N1) 2009 82 (89) 25 (96)
Influenza A, not subtyped
10 (11)
1 (4)
0.45‡
Age, y
Median 51.0 37.5 <0.001¶
Mean
50.4
33.4
<0.001#
Male gender
94 (59)
17 (50)
0.35
Race/ethnicity
White 123 (77) 18 (53)
Black 7 (4) 0 (0)
American Indian/Alaska Native 7 (4) 7 (21)
Asian/PacificIslander 2 (1) 2 (6)
Hispanic
21 (13)
7 (21)
0.001‡
Autopsy performed
27 (17)
29 (85)
<0.001
Place of death
Hospital/emergency department 146 (91) 15 (44)
Residence 12 (8) 18 (53)
Other 1 (1) 0 (0)
Unknown 1 (1) 1 (3) <0.001‡

*Values are no. (%) except as indicated. UNEX, Centers for Disease Control and Prevention Emerging Infections Program Unexplained Deaths Program; Med-X, Medical Examiner Infectious Disease Death Surveillance Program.
†By χ2 or Fisher exact test.
‡By χ2 test among all categories.
§Data available from Minnesota and New Mexico only; n = 92 for hospital surveillance and n = 26 for UNEX/Med-X.
¶By Wilcoxon Mann-Whitney test.
#By analysis of variance F-test.

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