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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Int J Eat Disord. 2012 Feb 13;45(5):695–703. doi: 10.1002/eat.22003

Table 3.

Results from logistic regression analyses predicting current obesity from current sleep problems in women. Analysis 1 includes age as a covariate. Analysis 2 includes age as a covariate and adjusts for lifetime depression diagnosis.

Sleep Variables
(Referent Response
for the Odds Ratios)
Response Comparison Analysis 1 Analysis 2
Odds Ratio
95% CI)
χ2
p-value)
Odds Ratio
95% CI)
χ2
p-value)
Usually nap at least
every second day (No)
Yes 2.03 (1.51, 2.73) 15.53 (.001) 1.94 (1.45, 2.63) 14.07 (.001)
Sleep enough
Definitely enough)
Mostly enough 1.13 (0.66, 1.93) 12.02 (.018) 1.13 (0.66, 1.93) 10.45 (.034)
A bit too little 1.40 (0.81, 2.40) 1.36 (0.79, 2.35)
Clearly not enough 1.63 (0.84, 4.25) 1.53 (0.79, 2.96)
Far from enough 3.66 (1.82, 7.36) 3.41 (1.69, 6.89)
How well you sleep
(Very well)
Pretty well 1.53 (1.03, 2.82) 27.30 (.001) 1.49 (1.00, 2.23) 23.62 (.001)
Neither poorly nor well 1.57 (0.96, 2.56) 1.48 (0.90, 2.42)
Pretty poorly 2.73 (1.72, 4.32) 2.53 (1.58, 4.04)
Very poorly 5.66 (3.09, 10.37) 5.17 (2.79, 9.59)
Morning/night person
(Morning person,
definitely)
Morning person,
to some degree
0.96 (0.62, 1.47) 21.29 (.001) 0.94 (0,61, 1.45) 19.75 (.001)
Night person, to some
degree
1.03 (0.66, 1.60) 1.01 (0.65, 1.57)
Night person, definitely 2.26 (1.49, 3.43) 2.16 (1.42, 3.29)
Problems falling asleep
Never)
Seldom 1.04 (0.69, 1.55) 16.39 (.003) 1.03 (0.69, 1.54) 14.19 (.007)
Sometimes 1.26 (0.86, 1.86) 1.20 (0.81, 1.78)
Usually 1.71 (1.03, 2.83) 1.56 (0.92, 2.63)
Always 5.12 (2.76, 9.50) 4.57 (2.45, 8.50)
Sleepy during work or
free time
Never)
Seldom 0.74 (0.32, 1.71) 21.40 (.001) 0.73 (0.31, 1.69) 18.09 (.002)
Sometimes 1.30 (0.58, 2.89) 1.24 (0.55, 2.77)
Usually 1.49 (0.64, 3.50) 1.37 (0.58, 3.23)
Always 3.46 (1.38, 8.69) 3.04 (1.20, 7.73)
Waking too early
(Never)
Seldom 1.09 (0.74, 1.61) 10.04 (.040) 1.07 (0.73, 1.58) 7.39 (.12)
Sometimes 1.52 (1.05, 2.19) 1.42 (0.98, 2.07)
Usually 1.70 (1.02, 2.85) 1.56 (0.92, 2.64)
Always 2.81 (1.22, 6.47) 2.57 (1.12, 5.86)
Not enough rest
Never)
Seldom 0.62 (0.30, 1.26) 10.90 (.028) 0.61 (0.30, 1.25) 9.26 (.06)
Sometimes 0.73 (0.37, 1.47) 0.71 (0.36, 1.41)
Usually 0.90 (0.44, 1.82) 0.84 (0.41, 1.71)
Always 1.72 (0.78, 3.81) 1.53 (0.69, 3.42)
Disturbed sleep
Never)
Seldom 0.84 (0.51, 1.38) 19.98 (.001) 0.83 (0.50, 1.37) 17.26 (.001)
Sometimes 1.14 (0.71, 1.84) 1.09 (0.68, 1.77)
Usually 1.73 (1.02, 2.93) 1.60 (0.94, 2.72)
Always 3.32 (1.78, 6.20) 3.05 (1.62. 5.73)