How
to Take Away the Aged Trouble___Insomnia
"If
only I could get a good night's sleep" is a common lament,
particularly among older Americans. Many older adults have trouble
falling asleep and staying asleep. They awaken often during the night,
can't get back to sleep, and rise before dawn, symptoms that can cause
daytime fatigue, impair normal functioning, and increase health-care
costs. Some 12 to 25 percent of healthy seniors report chronic insomnia,
but despite their weariness, less than 15 percent receive treatment.
A
team of scientists at the Medical College of Virginia/Virginia
Commonwealth University led by Charles M. Morin, Ph.D., now at Laval
University, Quebec City, used behavioral and drug therapies, alone or in
combination, to treat late-life insomnia. Results suggest that combined
behavioral and drug therapies are effective for short-term management of
late-life insomnia, and behavioral therapy alone is more effective for
long-term improvement in sleep patterns.
Seventy-eight
adults with insomnia, including 50 women and 28 men, participated in the
study. Subjects had to be 55 or older with insomnia for 6 months or
more. They had to take longer than 30 minutes to fall asleep and stay
awake longer than 30 minutes after sleep onset for at least 3 nights a
week; and they also had to cite at least one negative effect during
waking hours, such as fatigue, impaired functioning, or mood
disturbance. Eighteen subjects received cognitive-behavioral therapy (CBT);
20 received drug therapy (temazepam); 20 had both treatments; and 20
received placebo.
The
cognitive therapy component was designed to alter faulty beliefs and
behaviors that often make insomnia worse, such as trying to sleep 8
hours each night, blaming all daytime mishaps on poor sleep, and
spending too much time in bed before sleeping. Participants also learned
about the effects of diet, age, exercise, caffeine, alcohol, and
environmental factors on their sleep habits.
Those
receiving CBT attended 8 weekly 90-minute therapy sessions conducted in
small groups. Methods involved regulating sleep-wake schedules and
associating the bed, bedroom, and bedtime with sleep, rather than with
the frustration and anxiety connected with lying in bed trying to sleep.
The procedures were:
Go
to bed only when sleepy.
Use
the bed and bedroom for sleep and sex only -- no reading, watching TV,
or worrying in bed or in the bedroom.
Get
out of bed and go to another room when unable to fall asleep within 15
to 20 minutes.
Repeat
this step as often as necessary when trying to fall asleep or to get
back to sleep.
Rise
at the same time every morning, regardless of the amount of sleep during
the previous night.
Subjects
assigned to the active medication received temazepam (Restoril), because
it is well tolerated by older adults and has minimal side effects.
Medication subjects met once a week for consultation with the study
physician, who reviewed therapeutic responses and adverse affects.
Participants
in the third group received both temazepam and CBT. They attended 8
weekly individual therapy sessions with a psychiatrist to discuss
medication management and 8 weekly group therapy sessions with a
psychologist to review cognitive behavioral procedures.
Those
receiving placebo were offered an active treatment after completing the
3-month follow-up.
Results
showed that the three active treatments were more effective than
placebo, with the combined approach more effective than either of the 2
single components. Improvements occurred in time awake after sleep
onset, sleep efficiency, and total sleep time. For example, the
percentage of reduced time awake after sleep onset was highest for
cognitive-behavioral therapy combined with drug therapy (63%), followed
by cognitive-behavioral therapy (55%), drug therapy (46.5%), and placebo
(16.9%). At the end of treatment, the following percentages of subjects
no longer even met insomnia criteria: 78% (CBT); 56% (medication); 75%
(combined), and 14% (placebo).
Those
treated only with behavioral therapy maintained their gains at
follow-ups, but those treated with drug therapy alone did not.
Behavioral treatment, singly or combined, was rated by subjects,
significant others, and clinicians as more effective than drug therapy
alone. Subjects were also more satisfied with the behavioral approach.
Participants
kept diaries to monitor bedtime, rising time, waking after sleep onset,
and taking study medication. Time awake after sleep onset and sleep
efficiency recorded in both diaries and overnight sleep laboratory
evaluations were measured, along with ratings from subjects, significant
others, and clinicians. The patients were monitored for sleep states
before and after treatment.
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