Individuals speak Turkish and lives in Turkey, ages between 15 - 65, literate and with internet access

Volunteer individuals enrolled the study after approval an online informed consent form. Sociodemographic data of the participants recorded as an online survey. Then, patient reported outcomes were used to assess depression (Zung depression Scale) and quality of life (WHO Qualiy of Life - Bref version).

Participants are asked to give information about: age, gender, educational status, height, weight, occupation, working status, city inhabited, whether they live alone or with someone, whether they have a chronic disease, have a pet, do physical activity, eat healthy and sufficient, have qualified sleep, whether they are supported economically.

Zung depression scale, developed by Zung (Zung, 1965), is patient rating depression scale, was used to asses four domains related to depression; somatic, mood disorders, psychomotor and psychological disorders. Each question is rated on a 4-point Likert scale (0- never, 1- sometimes, 2- frequently, 3- always). Scale contains 10 straight 10 reverse questions. The total score is calculated from the raw score obtained (total score = (raw score / 80) * 100). Accordingly, scores less than 50 are normal or no psychopathology; between 50 and 59 points indicates mild level, between 60 and 69 points indicate moderate level and 70 and above points indicate severe level depression (Thurber et al., 2002). The validity reliability of the scale was studied on Turkish society (Gencdogan & Nihal, 2011)

World Health Organization Quality of Life Bref is the short version of the WHOQOL-100 to assess the health-related quality of life (Harper et al., 1998), which has efficient psychometric properties, valid and reliable for Turkish society (Eser et al., 1999). It is essential for epidemiological survey and international report has built for psychometric properties for 26 country where Turkey within (Skevington et al., 2004). It has 4 domains; physical health, psychology, social relations and environment. Each question is answered on a 5-point Likert scale. The raw score is converted into a percentage system. The quality of life is interpreted as good as it gets closer to 100% (Akvardar et al., 2006).