ps_wakerepeat caffeine

Race

Difficulty waking up in the morning vs Study visit number
Visit 1 Visit 2 Visit 3 Visit 4 Visit 5
Total 1,123 758 566 121 2
Never 281 188 177 47 1
Rarely (once a month) 402 314 215 54 -
Sometimes (2-4 times a month) 257 160 125 11 1
Often (5-15 times a month) 117 61 34 6 -
Almost always (16-30 times a month) 66 35 15 3 -
Difficulty waking up in the morning vs Sex of the participant
Visit 1
Male Female Total
Total 608 515 1,123
Never 188 93 281
Rarely (once a month) 232 170 402
Sometimes (2-4 times a month) 133 124 257
Often (5-15 times a month) 44 73 117
Almost always (16-30 times a month) 11 55 66
Difficulty waking up in the morning vs Sex of the participant
Visit 2
Male Female Total
Total 406 352 758
Never 109 79 188
Rarely (once a month) 195 119 314
Sometimes (2-4 times a month) 76 84 160
Often (5-15 times a month) 20 41 61
Almost always (16-30 times a month) 6 29 35
Difficulty waking up in the morning vs Sex of the participant
Visit 3
Male Female Total
Total 304 262 566
Never 106 71 177
Rarely (once a month) 126 89 215
Sometimes (2-4 times a month) 57 68 125
Often (5-15 times a month) 13 21 34
Almost always (16-30 times a month) 2 13 15
Difficulty waking up in the morning vs Sex of the participant
Visit 4
Male Female Total
Total 67 54 121
Never 33 14 47
Rarely (once a month) 30 24 54
Sometimes (2-4 times a month) 3 8 11
Often (5-15 times a month) 1 5 6
Almost always (16-30 times a month) - 3 3
Difficulty waking up in the morning vs Sex of the participant
Visit 5
Male Female Total
Total - 2 2
Never - 1 1
Rarely (once a month) - - -
Sometimes (2-4 times a month) - 1 1
Often (5-15 times a month) - - -
Almost always (16-30 times a month) - - -
Difficulty waking up in the morning vs Race of the participant
Visit 1
White Black Hispanic Native American Asian Total
Total 1,065 23 13 10 12 1,123
Never 263 9 5 2 2 281
Rarely (once a month) 384 6 3 4 5 402
Sometimes (2-4 times a month) 246 5 2 2 2 257
Often (5-15 times a month) 110 - 2 2 3 117
Almost always (16-30 times a month) 62 3 1 - - 66
Difficulty waking up in the morning vs Race of the participant
Visit 2
White Black Hispanic Native American Asian Total
Total 734 8 6 6 4 758
Never 179 4 3 2 - 188
Rarely (once a month) 308 2 1 1 2 314
Sometimes (2-4 times a month) 154 2 1 1 2 160
Often (5-15 times a month) 58 - 1 2 - 61
Almost always (16-30 times a month) 35 - - - - 35
Difficulty waking up in the morning vs Race of the participant
Visit 3
White Black Hispanic Native American Asian Total
Total 549 4 5 4 4 566
Never 171 1 2 2 1 177
Rarely (once a month) 211 1 1 1 1 215
Sometimes (2-4 times a month) 120 2 - 1 2 125
Often (5-15 times a month) 33 - 1 - - 34
Almost always (16-30 times a month) 14 - 1 - - 15
Difficulty waking up in the morning vs Race of the participant
Visit 4
White Black Hispanic Native American Asian Total
Total 113 1 2 2 3 121
Never 43 1 1 1 1 47
Rarely (once a month) 52 - 1 - 1 54
Sometimes (2-4 times a month) 9 - - 1 1 11
Often (5-15 times a month) 6 - - - - 6
Almost always (16-30 times a month) 3 - - - - 3
Difficulty waking up in the morning vs Race of the participant
Visit 5
White Black Hispanic Native American Asian Total
Total 2 - - - - 2
Never 1 - - - - 1
Rarely (once a month) - - - - - -
Sometimes (2-4 times a month) 1 - - - - 1
Often (5-15 times a month) - - - - - -
Almost always (16-30 times a month) - - - - - -