Table 2.
Study outcomes.
| Author | Sample size, n | Intervention group, n | Control group, n | Events (intervention), n (%) | Events (control), n (%) | Odds ratio (95% CI) | |
| Nonpatch studies | |||||||
|
|
Liu et al, 2010 [23] | 92 | —a | — | 39 (42.4) | 27 (29.2) | 1.77 (0.96-3.26) |
|
|
Hendrikx et al, 2014 [26] | 95 | — | — | 9 (9.5) | 2 (2.1) | 4.87 (1.02-23.16) |
|
|
Kimura et al, 2016 [27] | 28 | — | — | 15 (53.6) | 6 (21.4) | 4.23 (1.31-13.62) |
|
|
Busch et al, 2017 [28] | 1678 | — | — | 42 (2.6) | 21 (1.3) | 2.03 (1.19-3.44) |
|
|
Halcox et al, 2017 [29] | 1001 | 500 | 501 | 19 (3.8) | 5 (1.0) | 3.92 (1.45-10.58) |
|
|
Hickey et al, 2017 [30] | 46 | 23 | 23 | 14 (60.9) | 7 (30.4) | 3.56 (1.05-12.05) |
|
|
Narasimha et al, 2018 [31] | 33 | — | — | 6 (18.2) | 3 (9.1) | 2.22 (0.51-9.76) |
|
|
Reed et al, 2019 [19] | 240 | 124 | 116 | 9 (7.3) | 0 (0) | 19.16b (1.10-333.12) |
|
|
Goldenthal et al, 2019 [32] | 238 | 115 | 123 | 58 (50.4) | 49 (41.5) | 1.54 (0.92-2.57) |
| Patch studies | |||||||
|
|
Rosenberg et al, 2013 [24] | 74 | — | — | 38 (51.3) | 21 (28.4) | 2.66 (1.35-5.26) |
|
|
Barrett et al, 2013 [25] | 146 | — | — | 41 (28.1) | 27 (18.5) | 1.72 (0.99-2.99) |
|
|
Reed et al, 2018 [18] | 689 | 86 | 603 | 2 (2.3) | 0 (0) | 35.71b (1.70-750.18) |
|
|
Karunadas et al, 2019 [33] | 141 | — | — | 3 (2.1) | 3 (2.1) | 1.00 (0.20-5.04) |
|
|
Kaura et al, 2019 [34] | 116 | 56 | 60 | 7 (16.3) | 1 (2.1) | 8.43 (1.00-70.87) |
aNot applicable.
bHaldane correction applied.