Skip to main content
. 2019 Mar 1;70(1):40–48. doi: 10.1093/cid/ciz165

Table 1.

Characteristics of Patients on Whom Specimens Were Tested for Norovirus at 4 Veterans Affairs Medical Centers, November 2011–September 2015 (N = 1603)

Characteristic Total No. (%)
(N = 1603)
No. (%) Norovirus-positive
(n = 103)
Univariate OR (95% CI) P Value
Age category, y
 18–44 256 (16) 21 (8) Ref.
 45–64 704 (44) 42 (6) 0.71 (.41–1.22) .218
 65–84 556 (35) 32 (6) 0.68 (.39–1.21) .192
 ≥85 83 (5) 8 (10) 1.19 (.51–2.81) .685
 Not provided 4 (<1) 0 (0) NA NA
Race
 White 752 (47) 62 (8) Ref.
 African-American 689 (43) 32 (5) 0.54 (.35–.84) .006
 Othera 162 (10) 9 (6) 0.66 (.32–1.36) .257
Sex
 Male 1443 (90) 93 (6) 1.01 (.52–1.99) .971
 Female 157 (10) 10 (6)
 Not provided 3 (<1) 0 (0) Ref.
Setting
 Outpatient 788 (49) 57 (7) 1.30 (.87–1.95) .195
 Inpatient 815 (51) 46 (6) Ref.
Site
 A (Bronx) 410 (26) 25 (6) 1.39 (.78–2.47) .261
 B (Houston) 388 (24) 38 (10) 2.33 (1.37–3.95) .002
 C (Los Angeles) 267 (17) 16 (6) 1.37 (.71–2.62) .348
 D (Atlanta) 538 (34) 24 (5) Ref.
Surveillance year (November–October)
 2011–2012 410 (26) 36 (8) 2.48 (1.29–4.76) .007
 2012–2013 363 (23) 18 (5) 1.39 (.67–2.87) .382
 2013–2014 472 (29) 37 (8) 2.26 (1.18–4.31) .014
 2014–2015 358 (22) 13 (4) Ref.
Clinical symptoms
 Vomiting 556 (35) 65 (12) NA
 Diarrhea 1545 (97) 101 (7) NA

Abbreviations: CI, confidence interval; NA, not applicable; OR, odds ratio.

aIncludes 21 Asian/Pacific Islanders, 8 American Indian/Alaska Natives, 7 with >1 reported race, and 126 individuals with no reported race.