Skip to main content

Table 3 Absences due to communicable illness, person-time incidence rates and percent relative effects of a non-alcoholic rinse-free hand sanitizer

From: A systematic review of the effectiveness of antimicrobial rinse-free hand sanitizers for prevention of illness-related absenteeism in elementary school children

    Intervention Control  
Trials   No. of students No. of absences (no. of student-days) Absenteeism rate per 100 student-days No. of absences (no. of student-days) Absenteeism rate per 100 student-days Percent Relative Effect (95% CI)*
White et al. 41 770 153 (9615) 1.59 222 (9459) 2.35 33 (17, 45)
Dyer et al. 27 Phase 1 420 70 (4136) 1.69 105 (4120) 2.55 34 (10, 50)
  Phase 2 420 28 (4156) 0.674 63 (4140) 1.52 56 (31, 72)
  1. * Percent relative effect = (1- intervention rate/control rate)*100
  2. 95 percent confidence interval = (1–95% UCL of Rate Ratio)*100 to (1–95% LCL of Rate Ratio)*100