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Meta-analysis
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Systematic review:
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13 studies involving 3511 patients studied risk of HT vs
gender. Of the 13 studies, 2 found a significant
correlation with female gender being risk factor, 1 study
saw a borderline association and the remaining 10
studies saw no association between gender and risk of
HT
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Meta analysis:
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Female gender is risk factor for HT: OR=1.57, 95% CI:
1.30-1.88, p<0.00001
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“Discrepancy” between studies pure statistical
coincidence (insufficient power)
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No sign of heterogeneity!