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Table 2 Clinical respiratory illness (CRI) and average costs per HCW in each intervention arm for Beijing Trial 1 (2008/09) and Trial 2 (2009/10)

From: Cost-effectiveness analysis of N95 respirators and medical masks to protect healthcare workers in China from respiratory infections

Clinical respiratory illness (CRI) and average costs per HCW in each intervention arm in Trial 1 (Beijing 2008/09) with the adjusted estimate for All N95 combined shown in bold

 

Continuous medical mask,

2014 USD, (RMB)

Continuous N95 non-fit tested

2014 USD, (RMB)

Continuous N95 fit tested

2014 USD, (RMB)

Continuous All N95 (without fit testing cost)

2014 USD, (RMB)

Continuous All N95 (with fit testing cost)

2014 USD, (RMB)

CRI %

6.7%

3.3%

4.6%

2.6% a

2.6% a

Estimated cases prevented per 1000 HCWs compared to medical mask

NA

34

22

41 a

41 a

Intervention costs per HCW

8.53 (53)

32.07 (199)

60.40 (374)

32.07 (199)

60.40 (374)

CRI costs per HCW

0.81 (5)

0.39 (2)

0.64 (4)

0.31 (2)

0.31 (2)

Total costs per HCW

9.34 (58)

32.46 (201)

61.04 (378)

32.48 (201)

60.72 (376)

Clinical respiratory illness (CRI) and average costs per HCW in each intervention arm in Trial 2 (Beijing 2009/10) with the adjusted estimate for continuous N95 fit tested shown in bold

 

Continuous medical mask

2014 USD, (RMB)

Targeted N95 fit tested

2014 USD, (RMB)

Continuous N95 fit tested

2014 USD, (RMB)

Continuous N95 fit tested

2014 USD, (RMB)

 

CRI %

17.1%

11.8%

7.2%

6.7% b

 

Estimated cases prevented per 1000 HCWs compared to medical mask

NA

53

99

105 b

 

Intervention costs per HCW

9.35 (58)

61.31 (380)

61.31 (380)

61.31 (380)

 

CRI costs per HCW

1.40 (9)

0.97 (6)

0.59 (4)

0.55 (3)

 

Total costs per HCW

10.75 (67)

62.28 (386)

61.90 (384)

61.86 (384)

 
  1. aResults calculated based on the clustering and confounder adjusted odds ratio (0.38) for All N95 compared to medical mask (equivalent to a 62% efficacy = 1 - OR)
  2. bResults calculated based on the clustering and confounder adjusted hazard ratio (0.39) for continuous N95 fit tested compared to medical mask (equivalent to a 61% efficacy = 1 - HR)