Am I missing something or is this study about hand washing before patient contact, not hand washing after using the toilet? I realize this isn't the main point,

Am I missing something or is this study about hand washing before patient contact, not hand washing after using the toilet? I realize this isn't the main point, but to me it suggests that the author didn't actually bother to read the study they're citing. I wonder what percent of the time the author would estimate they read the studies they cite...