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. Author manuscript; available in PMC: 2008 Apr 1.
Published in final edited form as: J Pain Symptom Manage. 2007 Apr;33(4):398–409. doi: 10.1016/j.jpainsymman.2006.09.022

Table 2.

Subjective Sleepa Prior to First Chemotherapy (n=130)

Variable Possible Range Mean SD Mean score range 0–0.9 (n, %) Mean score range 1.–1.9 (n, %) Mean score range 2–2.9 (n, %)
Total score (n=127) 0–21 6.61b 3.42
Sleep quality 0–3 1.0 0.68 25 (19) 85 (65) 20(15)
Sleep latency 0–3 1.11 0.93 37 (28) 54 (42) 39 (30)
Sleep duration 0–3 0.76 0.81 59 (46) 44 (34) 26 (20)
Habitual sleep efficiency 0–3 0.59 0.89 79 (62) 28(22) 20(16)
Sleep disturbances 0–3 1.55 0.57 0 (0) 64(49) 66(51)
Use of sleeping medications 0–3 0.74 1.17 87(67) 13(10) 30(23)
Daytime dysfunction 0–3 0.88 0.57 28(22) 90(69) 12(9)
Total score (n=127) Mean score <=5 Mean score >5 Mean score >8
55(43) 72(57) 33(26)

Note: Missing data when numbers do not add up to 130.

SD = standard deviation.

a

Subjective sleep measured by Pittsburgh Sleep Quality Index (31)

b

Good sleeper < or = 5; poor sleeper >5 (28); poor sleeper with cancer >8 (32).