Histogram

Sleepiness that interferes with concentration (last month) vs Visit
Peds Teenz TREC
Total - - 517
Never - - 209
Rarely (Less than once a week) - - 139
Sometimes (1 to 2 times per week) - - 112
Frequently (3-4 times per week) - - 27
Always or Almost Always (5 to 7 times per week) - - 17
Unknown - - 13
Sleepiness that interferes with concentration (last month) vs Age at time of visit
TREC
16.14 to 17.41 years 17.41 to 17.69 years 17.69 to 17.91 years 17.91 to 19.56 years Total
Total 130 129 129 129 517
Never 51 52 51 55 209
Rarely (Less than once a week) 33 36 36 34 139
Sometimes (1 to 2 times per week) 32 24 29 27 112
Frequently (3-4 times per week) 7 8 5 7 27
Always or Almost Always (5 to 7 times per week) 4 6 4 3 17
Unknown 3 3 4 3 13
Sleepiness that interferes with concentration (last month) vs Male gender
TREC
No Yes Total
Total 256 261 517
Never 94 115 209
Rarely (Less than once a week) 66 73 139
Sometimes (1 to 2 times per week) 65 47 112
Frequently (3-4 times per week) 15 12 27
Always or Almost Always (5 to 7 times per week) 8 9 17
Unknown 8 5 13
Sleepiness that interferes with concentration (last month) vs Race
TREC
White Black Other Total
Total 309 185 23 517
Never 119 85 5 209
Rarely (Less than once a week) 93 41 5 139
Sometimes (1 to 2 times per week) 66 36 10 112
Frequently (3-4 times per week) 15 10 2 27
Always or Almost Always (5 to 7 times per week) 12 4 1 17
Unknown 4 9 - 13