• Data reference period
• Place of residence (Portugal)
• Sex
• Level of education

• FAECAL OCCULT BLOOD TESTING:  -
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
• SEX:  Biological and physiological characteristics that define men and women.
• EDUCATIONAL QUALIFICATIONS:  The degrees, diplomas, certificates, professional titles and so forth that an individual has acquired by study.
• RESIDENT POPULATION:  Set of persons who, regardless of being present or absent in a given housing unit at the moment of observation, have lived in the place of their usual residence for a continuous period of 12 months prior to the moment of observation, or have arrived to the place of their usual residence during the period of 12 months prior to the moment of observation, with the purpose of living there for a year, at least.

[Resident population aged between 50 and 74 years old who reported having made a faecal occult blood test in the 2 years preceding the interview/ Resident population aged between 50 and 74 years old]*100