Review Article
Association of Cancer and the Risk of Developing Atrial Fibrillation: A Systematic Review and Meta-Analysis
Table 3
Subgroup analysis of the association between cancer and atrial fibrillation.
| | Subgroup | Number of studies | Meta-analysis | Heterogeneity | OR | 95% CI | value | I2 (%) | value |
| Study design | Case control | 2 | 2.11 | 1.03–4.34 | 0.04 | 77 | 0.04 | Cohort | 3 | 1.38 | 1.15–1.64 | 0.0004 | 69 | 0.04 |
| Study location | Europe | 3 | 1.56 | 1.39–1.76 | <0.0001 | 65 | 0.06 | USA | 2 | 1.22 | 1.04–1.44 | 0.01 | 0 | 0.52 |
| Criterion for AF diagnosis | ECG | 2 | 1.89 | 0.70–5.10 | 0.21 | 87 | 0.005 | ICD | 2 | 1.56 | 1.39–1.74 | <0.0001 | 0 | 0.62 |
| Time interval between cancer diagnosis and AF | ≤90 days | 2 | 7.62 | 3.08–18.88 | <0.0001 | 91 | 0.0009 | 91–365 days | 2 | 1.06 | 0.90–1.25 | 0.46 | 0 | 0.48 | >365 days | 2 | 0.97 | 0.71–1.34 | 0.87 | 84 | 0.01 |
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AF = atrial fibrillation; CI = confidence interval; ECG = electrocardiogram; ICD = International Classification of Disease; OR = odds ratio.
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