case control studies begin with -
condition (always retrospective)
case control studies go from -
effect to cause
case control studies compare -
those with condition to those without
case control studies prefer-
smaller sample size
case control studies are suitable for -
rare conditions
case control studies find
odds ratio
OR < 1 =
odds of exposure for cases are less than for control
OR =1
odds for exposure for cases are the same as those for control
OR > 1
odds of exposure for cases are more than those for control