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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Prev Sci. 2013 Apr;14(2):111–120. doi: 10.1007/s11121-011-0221-x

Table 2.

A hypothetical example to illustrate that within-subgroup comparisons can lead to misleading results

Males Cured Females Cured
Treatment 32/40 4/5
Control 16/40 2/5
RD=0.4, p<0.001 RD=0.4, p=.52