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