Validation of actigraphy to assess circadian organization and sleep quality in patients with advanced lung cancer

Table 5 Correlations of PSQI Components and Actigraphy Parameters of Circadian Organization for Inpatients and Outpatientsa

Actigraphy Parameters (Circadian)	PSQI Sleep Duration	PSQI Sleep Efficiency	PSQI Sleep Disturbance	PSQI Sleep Medicine	PSQI Daytime Dysfunction	PSQI Overall PSQI
Inpatients(n = 35)
24 HR rhythm Mean	ns	ns	ns	ns	ns	ns
24 HR rhythm Amplitude	ns	ns	ns	ns	ns	ns
Peak Activity	ns	ns	ns	ns	ns	ns
Circadian Quotient	ns	ns	ns	ns	ns	ns
Rhythm Quotient	ns	ns	ns	ns	ns	ns
Day-Night Activity Balance	ns	ns	-0.61 (0.037)	ns	ns	ns
Day-Night Wake Balance	ns	0.4(0.03)	ns	ns	ns	ns
Day-Night Sleep Balance	-0.43 (0.016)	ns	ns	0.46 (0.018)	ns	ns
Night Day Long Sleep Balance	0.37 (0.039)	ns	ns	ns	ns	ns
Night Day Longest Sleep Balance	-0.38 (0.03)	ns	ns	ns	ns	ns
Night-Day Sleep Balance	ns	ns	ns	ns	ns	ns
*Outpatients* (n = 33)
24 HR rhythm Mean	ns	ns	ns	-0.45 (0.02)	ns	ns
24 HR rhythm Amplitude	ns	ns	ns		-0.45 (0.048)	ns
Peak Activity	ns	ns	ns	-0.45 (0.048)	ns	ns
Circadian Quotient	ns	ns	ns	ns	-0.42 (0.065)	ns
Rhythm Quotient	ns	ns	ns	ns	-0.58 (0.007)	ns
Day-Night Activity Balance	ns	ns	-0.61 (0.037)	ns	ns	ns
Day-Night Wake Balance	ns	0.36 (0.08)	ns	ns	ns	ns
Day-Night Sleep Balance	0.43 (0.027)	ns	ns	ns	-0.62 (0.004)	-0.49 (0.01)
Night Day Long Sleep Balance	0.37 (0.063)	ns	-0.42 (0.08)	ns	-0.64 (0.003)	-0.52 (0.006)
Night Day Longest Sleep Balance	0.43 (0.028)	ns	ns	ns	-0.51 (0.027)	-0.4 (0.044)
Night-Day Sleep Balance	ns	ns	-0.44 (0.067)	-0.37 (0.07)	-0.43 (0.065)	-0.36 (0.071)

^a Correlations are shown only for p-values < 0.05; ns = not significant; p-values are in ( ).