Measures of association between TB and HIV positivity were variable amongst those studies that reported it, with some finding no significant association [ 40 , 58 , 60 , 65 , 73 , 75 ] whilst others reported highly significant associations between the two infections, with relative risks of co-infection ranging from 2.0 to 10.75 [ 51 , 58 ].
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The sentences
This increased risk fell just short of significance, but this study may have lacked adequate power to detect a difference [ 7 ].