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How do you test this? Healing rates are hugely dependant on quirks of the patient... So you can't really have a control group not using the apartus... Do you in
by superk 16y ago
How do you test this? Healing rates are hugely dependant on quirks of the patient... So you can't really have a control group not using the apartus... Do you inflict a second, identical wound to the individual to compare which heals faster?
- rauljara 16y agoNatural experiment. You take a whole bunch of people who have naturally received wounds, classify them as best you can by severity of wound, some people get suction, some people merely get bandages, and keep track of how long it takes people to heal. With enough people in the study (probably not all that many if the effect is as large as the article makes it out to be) any difference in individual healing time or minor problems in the mischaracterization of wounds will average out. Problems like this are exactly why statistical tests take into account things like standard deviation.
- deleted 16y ago[deleted]
- JshWright 16y agoIsn't the whole point of a large sample size to account for "quirks" in any given individual?
- bhousel 16y agoActually, yes.. But they test them on pigs, not humans.
- ElliotH 16y agoI've seen a study where they've caused minor wounds by puncturing the skin of a finger, so I guess its possible here, you can get people to volunteer for all sorts of things. Specific study was a psychology one though,not a medical one,but it was to test how long wounds took to heal (independent variable being the happiness of patients or similar).