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Table 2 Effectiveness of calendar – trend percentage of doses on time

From: Improving immunisation timeliness in Aboriginal children through personalised calendars

Type of immunisation (scheduled immunisation point)

Calendar received

Percentage of doses on time (delay <31 days)

Cochran-Armitage trend test

Immunisation given at AMSWS

No

Yes

Total

p value

02 M

Never

83.0%

89.2%

87.3%

N/A

04 M

Never

68.1%

56.8%

60.7%

N/A

 

Last visit *

0.0%

90.3%

87.5%

N/A

06 M

Never

40.0%

43.2%

41.8%

0.0012

 

Before last visit**

66.7%

57.9%

59.1%

 
 

Last visit

0.0%

80.0%

74.1%

 

12 M

Never

49.3%

55.0%

52.7%

0.0106

 

Before last visit

40.0%

79.3%

73.5%

 
 

Last visit

40.0%

79.2%

72.4%

 

18 M

Never

42.5%

46.3%

44.7%

<.0001

 

Before last visit

58.8%

67.7%

64.6%

 
 

Last visit

100.0%

87.5%

89.5%

 

all types

Never

53.8%

59.2%

57.2%

<.0001

 

Before last visit

56.0%

69.6%

66.4%

 
 

Last visit

45.5%

84.4%

80.4%

 
  1. * Last visit = calendar was given at immediately preceding scheduled immunisation point, prompting this particular immunisation.
  2. ** Before last visit= calendar had been given at a previous immunisation point as a reminder for a previous dose, but not at the immunisation immediately preceding this scheduled immunisation.
  3. N/A = Trend test not applicable.