Table 2.

Adjusted odds of having mild depression symptoms for each rest-activity rhythm variable by study

Sleep-wake characteristic	Local sample (n=63)		NHANES (n=280*)
	OR (95% CI)	p-value	OR (95% CI)	p-value
“Get going” time (up-mesor)	0.80 (0.44-1.45)	0.55	1.33 (0.89-2.00)	0.17
“Settle down” time (down-mesor)	0.86 (0.47-1.59)	0.22	0.93 (0.70-1.22)	0.58
Rhythm strength (relative amplitude)	0.93 (0.53-1.65)	0.81	0.91 (0.63-1.32)	0.62
Inter-daily stability (activity pattern consistency across days)	1.07 (0.56-2.05)	0.84	0.92 (0.69-1.23)	0.56
Intra-daily variability (within-daily fragmentation)	1.96 (1.05-3.63)	0.03	1.34 (1.01-1.78)	0.03

Notes. Odds ratios all come from separate models adjusted for age, gender, race, and comorbidity measures.

^*280 is the actual sample size but results are weighted to reflect the target sample in the United States per NHANES recommendations