Characteristics | No. of estimates | Meta-RR estimate (95%CI) | I2 test (%) | p-value | Egger’s test |
---|---|---|---|---|---|
ML | |||||
Overall | 6 | 1.54 (0.79–3.01) | 81.80 | 0.2038 | 0.8539 |
Smoking status | |||||
Current smoker | 3 | 1.55 (0.44–5.46) | 75.24 | 0.4942 | 0.4930 |
Ever smoker | 3 | 1.68 (1.45–1.94) | 0.00 | < 0.0001 | 0.9406 |
Study type | |||||
Case-control studies | 1 | 0.52 (0.31–0.88) | 000 | < 0.00001 | NA |
Cohort studies | 5 | 1.71 (1.49–1.98) | 0.00 | < 0..0001 | 0.5972 |
AML | |||||
Overall | 28 | 1.43 (1.25–1.62) | 56.25 | < 0.0001 | 0.0848 |
Smoking status | |||||
Current smoker | 21 | 1.49 (1.28–1.72) | 53.64 | < 0.0001 | 0.3747 |
Ever smoker | 7 | 1.22 (1.00–1.48) | 34.43 | 0.00497 | 0.1008 |
Study type | |||||
Case-control studies | 23 | 1.43 (1.26–1.63) | 46.25 | < 0.0001 | 0.3784 |
Cohort studies | 5 | 1.43 (1.03–1.99) | 69.14 | 0.0351 | 0.0882 |
CML | |||||
Overall | 14 | 0.93 (0.74–1.16) | 40.44 | 0.5242 | 0.7871 |
Smoking status | |||||
Current smoker | 8 | 0.81 (0.64–1.01) | 0.00 | 0.0637 | 0.0347a |
Ever smoker | 6 | 1.05 (0.71–1.56) | 56.51 | 0.8101 | 0.6791 |
Study type | |||||
Case-control studies | 11 | 0.88 (0.69–1.11) | 25.34 | 0.2641 | 0.1266 |
Cohort studies | 3 | 1.08 (0.67–1.74) | 48.86 | 0.7513 | 0.8573 |
MDS | |||||
Overall | 22 | 1.66 (1.38–2.00) | 61.89 | < 0.0001 | 0.7014 |
Smoking status | |||||
Current smoker | 13 | 1.69 (1.28–2.22) | 62.94 | 0.0002 | 0.9380 |
Ever smoker | 7 | 1.51 (1.21–1.87) | 44.07 | 0.0002 | 0.1445 |
Study type | |||||
Case-control studies | 18 | 1.42 (1.25–1.62) | 2.32 | < 0.0001 | 0.3969 |
Cohort studies | 4 | 2.58 (1.80–3.70) | 63.99 | < 0.0001 | 0.4004 |
MPN | |||||
Overall | 3 | 1.70 (1.23–2.34) | 0.00 | 0.0013 | 0.9210 |
Smoking status | |||||
Current smoker | 3 | 1.70 (1.23–2.34) | 0.00 | 0.0013 | 0.9210 |
Ever smoker | 0 | NA | |||
Study type | |||||
Case-control studies | 1 | 1.25 (0.59–2.66) | 0.00 | 0.5623 | NA |
Cohort studies | 2 | 1.82 (1.27–2.59) | 0.00 | 0.0011 | NA |