Table 1.

Differences by Age among People Reporting Symptoms of Sleeplessness and Insomnia or Sleep Difficulties in Past 12 Months, Weighted for U.S. Population

	Age			Pairwise significance tests (p < .05)
	18–64	65–74	75+
Any report of sleeplessness and insomnia or sleep difficulties, %	23	16	14	18–64 > 65–74 > 75+
Of people reporting sleeplessness and insomnia or sleep difficulties:
Difficulty falling asleep, %	74	65	62	18–64 > 65–74 and 75+
Waking during the night, %	52	63	63	18–64 < 65–74 and 75+
Waking up too early, %	41	39	38	N.S.
Poor quality sleep, %	48	28	26	18–64 > 65–74 and 75+
Use of concomitant anticholinergic medication, %	23	33	44	18–64 < 65–74 and 75+
Use of alcohol, %	76	65	54	18–64 > 65–74 > 75+
15+ days per month using diphenhydramine or doxylamine products, %	21	37	47	18–64 < 65–74 and 75+