Histogram

Frequency of breathing stoppage during sleep vs Sleep Heart Health Study (SHHS) Visit Number
Visit 1 Interim Follow-up Visit Visit 2 CVD Outcomes
Total - 5,804 - -
Rarely - (less than one night a week) - 177 - -
Sometimes - (1 or 2 nights a week) - 135 - -
Frequently - (3 to 5 nights a week) - 94 - -
Always or almost always - (6 or 7 nights a week) - 101 - -
Don't know - 189 - -
Unknown - 5,108 - -
Frequency of breathing stoppage during sleep vs Gender
Interim Follow-up Visit
Male Female Total
Total 2,765 3,039 5,804
Rarely - (less than one night a week) 118 59 177
Sometimes - (1 or 2 nights a week) 107 28 135
Frequently - (3 to 5 nights a week) 80 14 94
Always or almost always - (6 or 7 nights a week) 79 22 101
Don't know 119 70 189
Unknown 2,262 2,846 5,108
Frequency of breathing stoppage during sleep vs Race
Interim Follow-up Visit
White Black Other Total
Total 4,907 515 382 5,804
Rarely - (less than one night a week) 155 14 8 177
Sometimes - (1 or 2 nights a week) 122 6 7 135
Frequently - (3 to 5 nights a week) 84 4 6 94
Always or almost always - (6 or 7 nights a week) 89 8 4 101
Don't know 175 8 6 189
Unknown 4,282 475 351 5,108