star Tnbune Siene &Heath; Felb ,DI8 Nanv ame Acne can increase risk af depressio

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star Tnbune Siene &Heath; Felb ,DI8 Nanv ame Acne can increase risk af depression People with acne are at substantially higher risk for depression in the first years after the coodition appears Researchers used a British database of 134,427 men and women with acne and 173,608 without and followed them for 15 years. Most were younger than 19 at the start of the study although they ranged in age from 7 to 50. The study is in the British Journal of Derma- tology Over the 15-year study period, the probability of developing major depres sion wras 18.5 percent among patients with acne and 12 in those without. scientists found that the increased risk for depression persisted only for the first five years after diagnosis. The risk was highest in the first year when there was a 63 percent Increased risk of depression in a person with acne compared Pleasu wte an snts in tom plete with someone withou ?? Is He study observat onul orexpor hentd1Hw do yu knne. beh of this sheet lai or experimenta/ ? maki it expehmental? 3. what i ttu population? Can we aenevalise results to thut ppulathon'2 Wiyor why vnot? t. What other infr matian wouldl you like to know aboutthe

Explanation / Answer

(1) observational study

The researcher has no control over the variables in an observational study.

An experiment is a method of applying treatments to a group and recording the effects.

(2) for experimetation we can make two group, control/placebo and treatment. we applied some medicine/therapy or other thing on treatment group and observe if there is decrese in depression level of treated group

(3) population is here individuals haveing acnes, yes we can generalise it .

In fields such as epidemiology, social sciences, psychology and statistics, an observational study draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns or logistical constraints.

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