Name
coffee10
Label
Morning Survey (Sleep Heart Health Study Visit One (SHHS1)): cups of coffee before bed
Description

How many cups of coffee (with caffeine) 4 hours before going to sleep last night? (number, up to 2 digits)

Units
cups
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Morning Survey (Sleep Heart Health Study Visit One (SHHS1)): cups of coffee before bed
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,606 0.1 ± 0.4 0.0 0.0 6.0 198 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 - - - - - - - -
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Morning Survey (Sleep Heart Health Study Visit One (SHHS1)): cups of coffee before bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,606 0.1 ± 0.4 0.0 0.0 6.0 198 5,804
35-44 years 332 0.1 ± 0.5 0.0 0.0 6.0 10 342
45-54 years 978 0.08 ± 0.4 0.0 0.0 4.0 39 1,017
55-64 years 1,709 0.1 ± 0.4 0.0 0.0 5.0 60 1,769
65-74 years 1,566 0.1 ± 0.4 0.0 0.0 5.0 51 1,617
75-84 years 919 0.07 ± 0.3 0.0 0.0 4.0 36 955
85 years or older 102 0.1 ± 0.4 0.0 0.0 3.0 2 104
Gender vs Morning Survey (Sleep Heart Health Study Visit One (SHHS1)): cups of coffee before bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,606 0.1 ± 0.4 0.0 0.0 6.0 198 5,804
Male 2,674 0.1 ± 0.4 0.0 0.0 5.0 91 2,765
Female 2,932 0.09 ± 0.4 0.0 0.0 6.0 107 3,039
Race vs Morning Survey (Sleep Heart Health Study Visit One (SHHS1)): cups of coffee before bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,606 0.1 ± 0.4 0.0 0.0 6.0 198 5,804
White 4,752 0.1 ± 0.4 0.0 0.0 6.0 155 4,907
Black 495 0.04 ± 0.2 0.0 0.0 2.0 20 515
Other 359 0.1 ± 0.4 0.0 0.0 4.0 23 382