Table 3.
Summary of sensitivity, specificity and accuracy of PPG
| Study (comparison) | Meta-analysis comparison number | Sensitivity % (95% CI) |
Specificity % (95% CI) |
PPV % (95% CI) |
NPV % (95% CI) |
Accuracy % (95% CI) |
| Brasier et al 2019a30 | 1 | 90 (86 to 93) | 99 (98 to 100) | 89 | ||
| Brasier et al 2019b30 | 2 | 91 (87 to 95) | 99 (97 to 100) | 78 | ||
| Brasier et al 2019c30 | 3 | 92 (86 to 95) | 100 (98 to 100) | 61 | ||
| Chan et al 201611 | 4 | 93 (77 to 99) | 98 (97 to 99) | 54 (38 to 68) | 100 (99 to 100) | |
| Fan et al 201912 | 5 | 95 (92 to 97) | 100 (98 to 100) | 100 (98 to 100 | 96 (93 to 98) | 98 (96 to 99) |
| Grieten et al 2018–133 | 6 | 98 (92 to 100) | 88 (80 to 94) | 88 (82 to 93) | 98 (92 to 99) | |
| Grieten et al 2018–234 | 100 | 97 | ||||
| Karim et al 201717 | 7 | 94 (85 to 98) | 96 (87 to 99) | |||
| Kuan et al 201818 * | 8 | 100 (83 to 100) | 95 (84 to 99) | |||
| Maitas et al 2012–120 | 100 | 99 | 99 | |||
| Maitas et al 2012–219 | 96 | 100 | 98 | |||
| McManus et al 201313 | 96 | 98 | 97 | |||
| McManus et al 201614 | 97 | 94 | 95 | |||
| Mortelmans et al 201721 | 9 | 98 (92 to 100) | 88 (80 to 94) | 93 (89 to 96) | ||
| Mukte et al 201935 | 10 | 92 (89 to 94) | 99 (97 to 99) | 98 (92 to 96) | 94 (92 to 96) | |
| Mutke et al 202031 | 11 | 92 (89 to 94) | 98 (97 to 99) | 95 | ||
| Napolitano 2015 | 97 | 94 | 95 | |||
| Poh et al 201836 | 12 | 95 (88 to 99) | 99 (98.6 to 99.3) | 73 (65 to 79) | 100 (100 to 100) | |
| Proesmans et al 2019–132 | 13 | 96 (89 to 99) | 97 (91 to 99) | 63 (61 to 65) | 100 (100 to 100) | |
| Proesmans et al 2019–222 | 14 | 81 (76 to 86) | 97 (96 to 98) | 95 (94 to 96) | 89 (87 to 91) | 91 (89 to 93) |
| Proesmans et al 201823 | 100 | 97 | 97 | |||
| Rozen et al 201815 | 15 | 93 (87 to 97) | 91 (83 to 96) | 92 (86 to 96) | 92 | 92 |
| Rozen et al 20179 | 96 (90 to 99) | 93 (87 to 97) | 93 (86 to 97) | 96 (90 to 99) | 96 | |
| Siu et al 201624 | 93 | 98 | ||||
| Smeets et al 201925 | 16 | 88 (85 to 91) | 97 (94 to 100) | 98 (97 to 99) | 77 (72 to 82) | 90 (88 to 92) |
| Vaid et al 201526 | 17 | 97 (82 to 100) | 85 (69 to 94) | 83 (67 to 93) | 97 (83 to 100) | |
| Vandenberk et al 2018–128 | 97 | 99 | ||||
| Vandenberk et al 2018–227 | 82 | 93 | 92 | 84 | ||
| Yan et al 201629 | 18 | 93 (77 to 98) | 95 (86 to 98) | |||
| Yan et al 2018a16 | 19 | 95 (87 to 98) | 96 (91 to 98) | 92 (84 to 96) | 97 (93 to 99) | 95 |
| Yan et al 2018b16 | 20 | 95 (87 to 98) | 93 (88 to 96) | 88 (80 to 93) | 97 (93 to 99) | 94 |
See table 1 for details of comparisons within studies.