Maggot therapy People generally dont think health when they hear the word maggot, but

Chapter 12, Problem 5

(choose chapter or problem)

Maggot therapy? People generally dont think health when they hear the word maggot, but one experiment tested the ability of maggots to remove dead tissue from open wounds that would not heal on their own. Sterile maggots were placed in a small pouch which, in turn, was placed on the wound. 100 men with wounds on their lower limbs were randomly assigned to receive either a traditional surgical treatment or maggot therapy. After eight days, the percentage of dead tissue in the wounds that underwent maggot treatment was 54.5%, compared to 66.5% with the surgical treatment. (The difference decreased with time, and the advantage disappeared by about day 15.) Neither patients nor the doctors evaluating the wounds knew which therapy had been applied. (Patients were blindfolded as bandages were changed.) Surprisingly, the number of patients that reported a crawling sensation in their wound was about the same in both groups! (http://www.myhealthnewsdaily.com/2030- maggots-clean-wounds-faster-surgeons.html) a) What kind of study was this? b) Is that an appropriate choice for this investigation? c) Who were the subjects? d) Identify the treatment and response variables.