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Table 4 Association between selected background characteristics and death from norovirus gastroenteritisa

From: Nationwide epidemiologic study of norovirus-related hospitalization among Japanese older adults

Characteristics

Mortality

Univariate analysis

Age/sex-adjusted analysis

n/N (%)

OR (95% CI)

aOR (95% CI)

Sex

Male

12/194 (6)

1.00

1.00

 

Female

9/273 (3)

0.52 (0.21–1.25)

0.41 (0.16–1.00)

Age (years)

60–69

2/66 (3)

1.00

1.00

 

70–79

3/145 (2)

0.68 (0.11–5.22)

0.69 (0.11–5.35)

≥80

16/259 (6)

2.11 (0.58–13.5)

2.63 (0.71–17.1)

  

(Trend P = 0.11)

(Trend P = 0.05)

Residence at symptom onset

Home

11/287 (4)

1.00

1.00

 

Long-term care facility

7/62 (11)

3.19 (1.13–8.48)

3.39 (1.15–9.55)

Hospital

3/115 (3)

0.67 (0.15–2.20)

0.67 (0.15–2.22)

Underlying illnesses

Absent

1/45 (2)

1.00

1.00

 

Present

20/424 (5)

2.18 (0.44–39.5)

2.16 (0.43–39.4)

 Chronic respiratory disease

Absent

17/438 (4)

1.00

1.00

 

Present

4/32 (13)

3.54 (0.97–10.4)

3.90 (1.01–12.5)

 Collagen diseases

Absent

20/463 (4)

1.00

1.00

 

Present

1/7 (14)

3.69 (0.19–23.1)

4.11 (0.21–28.1)

 Hematological disorders

Absent

19/457 (4)

1.00

1.00

 

Present

2/13 (15)

4.19 (0.62–17.1)

4.40 (0.64–18.9)

Complications

 Aspiration pneumonia

Absent

14/439 (3)

1.00

1.00

 

Present

7/28 (25)

10.1 (3.53–27.2)

8.97 (3.06–24.7)

 Others

Absent

15/427 (4)

1.00

1.00

 

Present

6/35 (17)

5.68 (1.91–15.2)

5.42 (1.79–14.8)

  1. Abbreviations: OR odds ratio, aOR adjusted odds ratio, CI confidence interval
  2. aLogistic regression model