Histogram

Cigarette smoking, time frame vs STAGES Visit
Alliance Sleep Questionnaire
Total 1,881
Day 505
Week 43
Unknown 1,333
Cigarette smoking, time frame vs Participant's sex
Alliance Sleep Questionnaire
Male Female Total
Total 868 991 1,859
Day 261 244 505
Week 21 22 43
Unknown 586 725 1,311