National tables. Lifestyles: number of nights spent away from home. Percentages Persons 18 to 49 years by sex, no. of nights spent away from home becuase of work/studies in the last 12 months and preferred source of sexual information Units: percentages ;Total;Old parents or relatives;Siblings or friends;Partner;Professionals;Various support; Both sexes; Total;100.00;53.10;12.62;5.06;25.77;3.45; At least 1 a month;100.00;46.29;17.77;5.39;26.62;3.93; Less than 1 a month;100.00;54.44;11.61;4.99;25.60;3.36; Males; Total;100.00;47.49;16.12;5.60;27.10;3.70; At least 1 a month;100.00;44.12;18.44;6.37;27.32;3.75; Less than 1 a month;100.00;48.43;15.47;5.38;27.04;3.68; Females; Total;100.00;58.80;9.07;4.51;24.41;3.21; At least 1 a month;100.00;50.65;16.40;3.43;25.22;4.30; Less than 1 a month;100.00;59.81;8.16;4.65;24.31;3.07; 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