Ann Clin Microbiol 2021;24:31-43. Safety and Effectiveness of Cytomegalovirus Specific Antigen Induced Interferon-Gamma ELISPOT/ELISA: A Systematic Review

Table 2. Summary of results (ELISPOT)
StudyF/UPeptide/Cut-offOdds ratio/Hazard ratio Diagnostic accuracyLevel of evidence
95% CIP-valueSensitivity (95% CI)Specificity (95% CI)
Prediction of prognosis
Lee (2017)*[17]12 MIE-1 > 128 spot/2 × 105 0.30 (0.09 – 0.46)0.95 (0.89 – 1.00)2+
pp65 > 134 spot/2 × 105 0.90 (0.58 – 1.00)0.38 (0.29 – 0.40) 
IE-1, pp65 1.00 (0.70 – 1.00)0.34 (0.26 – 0.34) 
Schachtner (2017)[22]55 MIE-1, pp65/NRHR 8.51 (4.53 – 15.9)0.00 0.94 (0.84 – 0.99)0.28 (0.17 – 0.33)2+
Leone (2016)*[18]1 MIE-1/15 SFCs/200,000OR 0.33 (0.21 – 0.94)0.02 0.700.732+
pp65/40 SFCs/200,000OR 0.32 (0.03 – 0.77)0.01 0.830.82 
Nesher (2016)[21]NRIE-1/50 IFN-γ spotHR 0.21 (0.05 – 0.97)0.05 0.962+
pp65/100 IFN-γ spot   0.91 
IE-1, pp65   0.91 
Ritta (2015)§[6]12 M20 SFU/2×105 0.4820.8182+
Costa (2014)*[13]3 M20 SFU/2×105 0.71 (0.62 – 0.80)0.60 (0.05 – 0.65)2+
Mattes (2008)[20]12 MIE-1, pp65/NROR 14.2 (2.7 – 100)0.02   2+
Shin (2018)*[23]NRIE-1, pp65/NR 0.121.002+
Banas (2017)§[11]NRIE-1, pp65/10 SFC/200,000 PBMC 0.90 (0.82 – 0.95)0.79 (0.70 – 0.85)2+
Kwon (2017)§[16]6 MIE-1 > 128 spot/2 × 105 0.30 (0.09 – 0.46)0.95 (0.89 – 1.00)2+
pp65: > 134 spot/2 × 105   0.90 (0.58 – 1.00)0.38 (0.29 – 0.40) 
IE-1, pp65   1.00 (0.70 – 1.00)0.34 (0.26 – 0.34) 
Yong (2017)§[24]12 MIE-1, pp65/NR 0.980.442+
Kim (2015)§[7]6 MIE-1 >10 spots/2 × 105 0.48 (0.32 – 0.63)0.67 (0.56 – 0.77)2+
pp65 >0 spots/2 × 105 0.44 (0.29 – 0.58)0.79 (0.69 – 0.87)
Lucia (2014)*,∥[19]NRIE-1/NR 0.71 (0.62 – 0.80)0.60 (0.05 – 0.65)2+
pp65/NR 0.71 (0.62 – 0.80)0.60 (0.05 – 0.65)
Decision of treatment
Kumar (2019)§[15]12 MIE-1 > 40 SFU 2.5 × 105 cellsOR 0.77 (0.67 – 0.87)0.00 2+
pp65OR 0.80 (0.72 – 0.87)0.00  
IE-1, pp65OR 0.79 (0.72 – 0.86)0.00  
Jarque (2018)§[14]12 MIE-1 25 IFN- γ spotOR 5.55 (1.49 – 20.8)0.01 0.710.712+
pp65, 130 IFN- γ spotOR 3.02 (0.87 – 10.6)0.08 0.570.76 
IE-1, pp65 25/130 IFN- γ spotOR 4.33 (1.18 – 15.88)0.03  
Bestard (2013)§[12]6 M20cell/2×105 PBMC 0.825
0.80
0.65
0.55
2+

*predict viremia; †predict duplication; ‡predict reactivation; §predict infection; ∥predict disease. Abbreviations: ELISPOT, enzyme-linked immunospot; F/U, follow up; CI, confidence interval; M, month; IE, immediate-early; NR, not reported; HR, hazard ratio; OR, odds ratio; pp65, phosphoprotein 65; PBMC, peripheral blood mononuclear cell; SFC, spot-forming cells; IFN, interferon; SFU, spot forming units.