Variable MN18 : How many days for last 3 months
Valid case(s): 382 (395.7)
Invalid: 14337 (14162.2)
Mean: 1.3 (1.2)
Standard deviation: 1.9 (1.8)
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
How many days did you consume alcoholic beverages during last 3 months?