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PIPEFREQNOW
Frequency of pipe smoking: Everyday/some days/not at all

Codes and Frequencies



An 'X' indicates the category is available for that sample

0NIUXXXXXXXXXXXX
1Every dayXXXXXXXXXXXX
2Some daysXXXXXXXXXXXX
3Not at allXXXXXXXXXXXX
7Unknown-refused···X····X···
8Unknown-not ascertained···X···X····
9Unknown-don't know···XX··X·XXX