Subjective sleep regularity

Subjective sleep regularity is associated with activity-limited unhealthy days in humans (IRR = 0.85, 95% CI 0.80 to 0.91; absolute difference less than half a day per 30 days).

“activity-limited unhealthy days (IRR = 0.85, 95% CI 0.80 to 0.91)”

HumansOlder adults from four Chinese sitesEach 1-SD higher SRQ score30-day outcome windown = 6,770

Subjective sleep regularity, frailty, and self-reported health loss in later life: evidence from a multisite study of older adults in China

BMC geriatrics·13 Oct 2026

Subjective sleep regularity is associated with mental unhealthy days in humans (IRR = 0.88, 95% CI 0.83 to 0.92; absolute difference less than half a day per 30 days).

“mental (IRR = 0.88, 95% CI 0.83 to 0.92)”

HumansOlder adults from four Chinese sitesEach 1-SD higher SRQ score30-day outcome windown = 6,770

Subjective sleep regularity, frailty, and self-reported health loss in later life: evidence from a multisite study of older adults in China

BMC geriatrics·13 Oct 2026

Subjective sleep regularity is associated with physical unhealthy days in humans (IRR = 0.94, 95% CI 0.90 to 0.99; absolute difference less than half a day per 30 days).

“fewer physical (IRR = 0.94, 95% CI 0.90 to 0.99)”

HumansOlder adults from four Chinese sitesEach 1-SD higher SRQ score30-day outcome windown = 6,770

Subjective sleep regularity, frailty, and self-reported health loss in later life: evidence from a multisite study of older adults in China

BMC geriatrics·13 Oct 2026

Subjective sleep regularity is associated with EQ-VAS in humans (β = 0.64, 95% CI 0.19 to 1.08 per 1-SD higher SRQ score).

“higher EQ-VAS (β = 0.64, 95% CI 0.19 to 1.08)”

HumansOlder adults from four Chinese sitesEach 1-SD higher SRQ scoren = 6,770

Subjective sleep regularity, frailty, and self-reported health loss in later life: evidence from a multisite study of older adults in China

BMC geriatrics·13 Oct 2026

Subjective sleep regularity is associated with EQ-5D problem count in humans (β = −0.041, 95% CI −0.079 to −0.004 per 1-SD higher SRQ score).

“Each 1-SD higher SRQ score was associated with fewer EQ-5D problems (β = −0.041, 95% CI − 0.079 to − 0.004)”

HumansOlder adults from four Chinese sitesEach 1-SD higher SRQ scoren = 6,770

Subjective sleep regularity, frailty, and self-reported health loss in later life: evidence from a multisite study of older adults in China

BMC geriatrics·13 Oct 2026