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Table 1 Epidemiological and clinical features by examine NV in AGE, asymptomatic patients

From: Epidemiological and molecular analysis of human norovirus infections in Taiwan during 2011 and 2012

 

AGE patients (n = 155)

   

Asymptomatic patients (n = 98)

 
 

NV

Negative

   

NV

Negative

 

Parameter

(n = 17)

(n = 138)

P a

ORd

95% CId

(n = 7)

(n = 91)

P b

Detection rate (%)

11

-

   

7.1

-

 

Sex (male: female)

10:7

74:64

   

5:2

47:44

 

Setting

        

  Outpatient (38,15) c

2(11.8)

36(26.1)

-

-

-

3(42.8)

12(13.2)

-

  Emergency (6,0) c

-

6(4.3)

-

-

-

-

-

-

  Inpatient (111,83) c

15(88.2)

96(69.6)

-

-

-

4(57.2)

79(86.8)

-

Age

        

  <10

9(52.9)

23(16.7)

0.002

5.6

2.0-16.1

1(14.3)

4(4.4)

-

  10-40

3(17.7)

28(20.3)

-

-

 

2(28.6)

5(5.5)

-

  >40

5(29.4)

87(63.0)

0.016

0.2

0.1-0.7

4(57.1)

82(90.1)

-

Season

        

  Spring

3(17.6)

54(39.1)

-

-

-

-

23(25.3)

-

  Summer

2(11.8)

42(30.4)

-

-

-

4(57.1)

45(49.4)

-

  Fall

2(11.8)

10(7.3)

-

-

-

-

10(11.0)

-

  Winter

10(58.8)

32(23.2)

0.004

4.7

1.7-13.4

3(42.9)

13(14.3)

-

Water type

        

  Tap water

12(70.6)

118(85.5)

-

-

-

6(85.7)

81(89.0)

-

  Underground water

-

2(1.4)

-

-

-

-

-

-

  Spring water

4(23.5)

7(5.1)

0.022

5.8

1.5-22.3

-

2(2.2)

-

  Miss data

1(5.9)

11(8.0)

-

-

-

1(14.3)

8(8.8)

-

Fever >38°C (%)

   

-

-

   

  Yes

9(52.9)

47(34.1)

-

2.5

0.9-7.1

2(28.6)

21(23.1)

-

  No

7(41.2)

91(65.9)

-

-

-

5(71.4)

70(76.9)

-

  Miss data

1(5.9)

-

-

-

-

-

-

-

Vomiting

        

  Yes

7(41.2)

28(20.3)

-

2.7

0.9-7.7

-

6(6.6)

-

  No

10(58.8)

108(78.3)

-

-

-

7(100)

85(93.4)

-

  Miss data

-

2(1.4)

-

-

-

-

-

-

Stool type

        

  Watery

8(47.1)

49(35.5)

-

-

-

-

1(1.1)

-

  Bloody

1(5.8)

18(13.0)

-

-

-

-

3(3.3)

-

  Non-watery, non-bloody

8(47.1)

71(51.5)

-

-

-

7(100)

87(95.6)

-

Abdominal pain

        

  Yes

9(52.9)

84(60.9)

-

-

-

-

19(20.9)

-

  No

7(41.2)

52(37.7)

-

-

-

7(100)

72(79.1)

-

  Miss data

1(5.9)

2(1.4)

-

-

-

-

-

-

  1. Only significant p value (<0.05) reported.
  2. a two-tailed Chi-Square, Fisher’s exact test comparing AGE patient and negative cases.
  3. b two-tailed Chi-Square, Fisher’s exact test comparing asymptomatic patient and negative cases.
  4. c the table in parentheses refer to the former is AGE patients and the latter is asymptomatic patients number.
  5. d OR odds ratio, CI confidence interval.
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BMC Infectious Diseases

ISSN: 1471-2334

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