Skip to main content

Table 3 The number of varicella cases pre- and post-intervention

From: An economic analysis of varicella immunization in the Singapore military

Demographics

Number of cases

P-value

Pre-intervention (Dec 2007 - Nov 2010)

Post-intervention (Dec 2010 to Dec 2013)

Sex

 Female

10 (3.2)

2 (1.6)

0.357

 Male

301 (96.8)

122 (98.4)

0.357

Race

 Chinese

233 (74.9)

102 (82.3)

0.101

 Malay

23 (7.4)

7 (5.6)

0.515

 Indian

28 (9.0)

11 (8.9)

0.965

 Others

27 (8.7)

4 (3.2)

0.046*

Job

 NSF

242 (77.8)

87 (70.2)

0.093

 Non-NSF

69 (22.2)

37 (29.8)

0.093

Age

 <20

71 (22.8)

13 (10.5)

0.003*

 20-22

172 (55.3)

70 (56.5)

0.828

 23-25

25 (8.0)

11 (8.9)

0.776

 26-30

16 (5.1)

12 (9.7)

0.082

 31-35

15 (4.8)

13 (10.5)

0.030*

 36+

12 (3.9)

5 (4.0)

0.933

Medical Leave (Workdays)

 0-2 days

90 (28.9)

38 (30.6)

0.724

 1 week

115 (37.0)

46 (37.1)

0.981

 >1 week

106 (34.1)

40 (32.3)

0.716

  1. Numbers in brackets are the proportion of cases within that category, given as a percentage. The P-value is calculated as a 2-tailed t-test of proportions between categories. “Other Race” includes minority races in Singapore, such as Boyanese, Bugis, Burmese, Caucasian, Ceylonese, Eurasian, Javanese, Nepalese and Sikh. “NSF” refers to Full Time National Servicemen, who are male Singaporeans that are conscripted into the military under the Enlistment Act