National tables. Lifestyles: nights out. Values Persons who have been diagnosed with some kind of sexually transmitted disease by sex and number of nights out in the last 12 months Units: thousands of persons Both sexes; Total;1,047.3; At least 1 a month;647.6; Less than 1 a month;399.7; No data recorded;0.0; Males; Total;583.8; At least 1 a month;388.6; Less than 1 a month;195.1; No data recorded;0.0; Females; Total;463.5; At least 1 a month;258.9; Less than 1 a month;204.6; No data recorded;0.0; Notes: Data corresponding to cells with less than 45,000 persons must be used with caution, because they may be affected by high sample errors. Source: National Statistics Institute