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Table 2 Demographic characteristics of trivalent influenza vaccine (TIV) completed, partial and non-vaccinated households during the three consecutive years of influenza seasons (2008–2011)

From: Geographical heterogeneity and influenza infection within households

 

1st Year

 

2nd Year

 

3rd Year

 
 

TIV(-)

TIV(+)

p

TIV(-)

Partial TIV

TIV(+)

p

TIV(-)

Partial TIV

TIV(+)

p

No of household

 

Household size#

3.28

3.45

 

4.2

7.46

3.84

 

3.76

7.50

4.12

 
 

(3.00,3.58)

(3.18,3.72)

 

(3.83,4.64)

(6.51,8.40)

(3.35,4.34)

 

(3.15,4.36)

(6.06,8.94)

(3.70,4.54)

 

Location of residence

           

  Taichung

28(0.47)

22(0.38)

 

34(0.30)

15(0.43)

29(0.51)

*

20(0.49)

9(0.45)

35(0.30)

*

  Nantou

31(0.53)

43(0.62)

 

80(0.70)

20(0.57)

28(0.49)

 

21(0.51)

11(0.55)

80(0.70)

 

Participants

 

Gender

           

  Male

31(0.53)

34(0.52)

 

71(0.52)

33(0.47)

31(0.48)

 

19(0.41)

21(0.49)

75(0.54)

 

  Female

28(0.47)

31(0.48)

 

66(0.48)

37(0.53)

33(0.52)

 

27(0.59)

22(0.51)

65(0.46)

 

Age (average years)#

9.24

8.00

*

9.39

9.20

9.11

 

10.80

9.65

9.66

*

 

(8.83,9.64)

(7.64,8.36)

 

(9.10,9.68)

(8.75,9.65)

(8.76,9.45)

 

(10.24,11.37)

(9.04,10.26)

(9.39,9.94)

 

Household contacts

 

Gender

           

  Male

60(0.44)

63(0.40)

 

152(0.44)

78(0.44)

55(0.40)

 

40(0.37)

45(0.42)

142(0.44)

 

  Female

75(0.56)

96(0.60)

 

192(0.56)

100(0.56)

84(0.60)

 

68(0.63)

61(0.58)

181(0.56)

 

Age

           

  <18

37(0.27)

43(0.27)

 

80(0.23)

45(0.25)

15(0.11)

*

31(0.29)

32(0.30)

74(0.23)

 

  ≥18

98(0.73)

116(0.73)

 

264(0.77)

133(0.75)

124(0.89)

 

77(0.71)

74(0.70)

249(0.77)

 

Age (average years)#

34.35

33.51

 

36.84

36.19

40.22

 

35.47

31.81

36.49

 
 

(31.46,37.24)

(30.82,36.20)

 

(34.91,38.77)

(33.51,38.87)

(37.58,42.85)

 

(31.79,39.16)

(28.63,34.99)

(34.55,38.43)

 

Vaccinated in previous year

           

  Yes

9(0.07)

29(0.18)

 

7(0.02)

21(0.12)

23(0.17)

*

16(0.15)

18(0.17)

68(0.21)

 

  No

126(0.93)

130(0.82)

 

337(0.98)

157(0.88)

116(0.83)

 

92(0.85)

88(0.83)

255(0.79)

 
  1. *p < 0.05.
  2. #Numbers in brackets are 95 % confidence interval calculated by GEE method.