<p>P-values for ORs; <i>Ph</i> values of Q-test for heterogeneity test; I<sup>2</sup> refers to the proportion of total variation owing to between-study heterogeneity</p><p>Bold data represent the positive results.</p><p>PB: population based; HB: hospital based; AML: acute myelocytic leukemia; HNC: head and neck cancer</p>*<p>Random-effects model was used when <i>Ph</i> value for heterogeneity test <0.05; otherwise, fix-effects model was used.</p
<p>N: number of studies included; OR: odds ratio; Ph: p value for heterogeneity; BC: breast cancer; ...
<p>AC Adenocarcinoma, SC Squamous cell carcinoma, SCLC Small cell lung cancer,</p>*<p>Random-effect ...
a<p>Number of comparisons.</p>b<p><i>P</i> value of <i>Q</i>-test for heterogeneity test.</p>c<p>Ran...
<p>P-values for ORs; <i>Ph</i> values of Q-test for heterogeneity test; I<sup>2</sup> refers to the ...
1<p>All summary ORs were calculated using fixed-effects models. In the case of significant heterogen...
1<p>All summary ORs were calculated using fixed-effects models. In the case of significant heterogen...
<p>PB, Population based; HB, Hospital based.</p>a<p><i>P</i> value of the Q-test for heterogeneity t...
<p>PB: population based; HB: hospital based; HWE: Hardy-Weinberg equilibrium (significant at the 0.0...
a<p>Random-effects model was used when <i>P</i> value for heterogeneity test <0.05; otherwise, fix-e...
<p>HB: hospital based; PB: population based; OR: odds ratio; CI: confidence interval; <i>P</i>: p va...
<p><i>Phet</i>: <i>P</i>-value of Q-test for heterogeneity test. The fixed-effects model was used wh...
<p><i>P<sub>het</sub></i>: test for heterogeneity; OR: odds ratio; CI: confidence interval; N: numbe...
<p>HWE: Hardy-Weinberg Equilibrium; PB: population based; HB: hospital based; Phet: P value for hete...
<p><i>P</i><sub>h</sub><i>P</i> values for heterogeneity from <i>Q</i> test. Random-effects model wa...
<p><sup>a</sup>Number of comparisons.</p><p><sup>b</sup>P <sub>value</sub> of Q-test for heterogenei...
<p>N: number of studies included; OR: odds ratio; Ph: p value for heterogeneity; BC: breast cancer; ...
<p>AC Adenocarcinoma, SC Squamous cell carcinoma, SCLC Small cell lung cancer,</p>*<p>Random-effect ...
a<p>Number of comparisons.</p>b<p><i>P</i> value of <i>Q</i>-test for heterogeneity test.</p>c<p>Ran...
<p>P-values for ORs; <i>Ph</i> values of Q-test for heterogeneity test; I<sup>2</sup> refers to the ...
1<p>All summary ORs were calculated using fixed-effects models. In the case of significant heterogen...
1<p>All summary ORs were calculated using fixed-effects models. In the case of significant heterogen...
<p>PB, Population based; HB, Hospital based.</p>a<p><i>P</i> value of the Q-test for heterogeneity t...
<p>PB: population based; HB: hospital based; HWE: Hardy-Weinberg equilibrium (significant at the 0.0...
a<p>Random-effects model was used when <i>P</i> value for heterogeneity test <0.05; otherwise, fix-e...
<p>HB: hospital based; PB: population based; OR: odds ratio; CI: confidence interval; <i>P</i>: p va...
<p><i>Phet</i>: <i>P</i>-value of Q-test for heterogeneity test. The fixed-effects model was used wh...
<p><i>P<sub>het</sub></i>: test for heterogeneity; OR: odds ratio; CI: confidence interval; N: numbe...
<p>HWE: Hardy-Weinberg Equilibrium; PB: population based; HB: hospital based; Phet: P value for hete...
<p><i>P</i><sub>h</sub><i>P</i> values for heterogeneity from <i>Q</i> test. Random-effects model wa...
<p><sup>a</sup>Number of comparisons.</p><p><sup>b</sup>P <sub>value</sub> of Q-test for heterogenei...
<p>N: number of studies included; OR: odds ratio; Ph: p value for heterogeneity; BC: breast cancer; ...
<p>AC Adenocarcinoma, SC Squamous cell carcinoma, SCLC Small cell lung cancer,</p>*<p>Random-effect ...
a<p>Number of comparisons.</p>b<p><i>P</i> value of <i>Q</i>-test for heterogeneity test.</p>c<p>Ran...