• Data reference period
• Place of residence (Portugal)

• FOOD INSECURITY:  -
• MODERATE FOOD INSECURITY:  Food insecurity that stems from uncertainty in obtaining food, the risk of missing meals or running out of food, being forced to compromise on the nutritional quality and/or quantity of food consumed.
• PRIVATE HOUSEHOLD:  A group of people living at the same dwelling, with either "de jure" or "de facto" family relationships,occupying the all or part of a dwelling; or a single person that fully or partly accupies a dwelling.
• 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.
• 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).
• SEVERE FOOD INSECURITY:  Food insecurity that stems from the total absence of food or for a day or two, extreme hunger.

(resident population in moderate or severe food insecurity / resident population) * 100