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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Laryngoscope. 2013 Aug 5;123(10):2364–2370. doi: 10.1002/lary.24040

Table 1.

Mean sub-domain and total scores of the Pittsburgh Sleep Quality Index (PSQI) across patient characteristics

Sleep
Quality
Sleep
Latency
Sleep
Duration
Sleep
Efficiency
Sleep
Disturbance
Sleep
Medication
Daytime
Dysfunction
PSQI Total
Characteristics: Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) Mean (SD) p-value
Gender
      Males 2.2 (1.0) 1.2 (1.0) 0.9 (1.0) 0.8 (1.0) 1.7 (0.7) 2.0 (1.1) 1.3 (0.8) 8.1 (4.1)
      Females 2.5 (0.9) 1.7 (1.0) 1.0 (1.0) 1.2 (1.1) 2.1 (0.7) 2.3 (1.0) 1.4 (0.8) 10.4 (4.4) <0.001
Nasal polyposis
      With 2.2 (1.1) 1.4 (1.0) 1.1 (1.1) 0.9 (1.0) 1.9 (0.7) 2.1 (1.1) 1.2 (0.8) 8.9 (4.5)
      Without 2.5 (0.9) 1.5 (1.0) 0.9 (1.0) 1.1 (1.1) 1.9 (0.7) 2.2 (1.0) 1.4 (0.8) 9.6 (4.3) 0.179
Depression
      With 2.5 (0.9) 1.7 (1.0) 1.0 (1.1) 1.3 (1.2) 2.1 (0.7) 2.1 (1.1) 1.8 (0.8) 11.1 (4.2)
      Without 2.4 (1.0) 1.4 (1.1) 0.9 (1.0) 1.0 (1.1) 1.9 (0.7) 2.2 (1.0) 1.3 (0.8) 9.0 (4.4) 0.002
Asthma
      With 2.3 (1.0) 1.4 (1.0) 1.0 (1.0) 1.0 (1.1) 1.9 (0.7) 2.3 (1.0) 1.3 (0.9) 9.2 (4.9)
      Without 2.4 (0.9) 1.5 (1.1) 0.9 (1.0) 1.0 (1.1) 1.9 (0.7) 2.1 (1.1) 1.4 (0.8) 9.5 (4.2) 0.633
Allergy by history
      With 2.2 (1.0) 1.3 (1.0) 0.6 (0.9) 0.8 (1.0) 1.9 (0.6) 2.3 (0.9) 1.1 (0.6) 8.2 (4.2)
      Without 2.4 (1.0) 1.5 (1.0) 1.0 (1.0) 1.1 (1.1) 1.9 (0.7) 2.1 (1.1) 1.4 (0.9) 9.5 (4.5) 0.087
Allergy by testing
      With 2.5 (0.9) 1.4 (1.1) 1.0 (1.0) 1.1 (1.2) 1.9 (0.7) 2.2 (1.0) 1.4 (0.9) 9.6 (4.2)
      Without 2.4 (1.0) 1.5 (1.0) 0.9 (1.0) 1.0 (1.1) 1.9 (0.7) 2.2 (1.1) 1.3 (0.8) 9.3 (4.5) 0.656
ASA Intolerance
      With 2.4 (0.9) 1.5 (1.2) 1.1 (1.1) 1.2 (1.2) 2.0 (0.7) 2.6 (0.7) 1.4 (0.9) 9.9 (4.6)
      Without 2.4 (1.0) 1.5 (1.0) 0.9 (1.0) 1.0 (1.1) 1.9 (0.7) 2.1 (1.1) 1.3 (0.8) 9.3 (4.4) 0.584
Current smoker
      Yes 2.6 (0.9) 1.9 (0.9) 0.9 (1.1) 1.1 (0.9) 2.3 (0.7) 2.3 (1.1) 2.1 (0.7) 11.7 (3.9)
      No 2.4 (1.0) 1.5 (1.1) 1.0 (1.0) 1.0 (1.1) 1.9 (0.7) 2.2 (1.0) 1.3 (0.8) 9.2 (4.4) 0.030
Prior sinus surgery
      Yes 2.4 (0.9) 1.5 (1.1) 0.9 (1.0) 1.0 (1.1) 2.0 (0.7) 2.2 (1.1) 1.4 (0.8) 9.5 (4.5)
      No 2.3 (1.0) 1.5 (1.0) 1.0 (1.0) 1.1 (1.1) 1.9 (0.6) 2.1 (1.0) 1.4 (0.9) 9.3 (4.3) 0.690
Cystic fibrosis
      With 2.6 (0.8) 2.0 (0.8) 0.6 (1.0) 1.0 (1.2) 2.0 (0.6) 2.0 (1.3) 1.7 (0.5) 9.7 (3.3)
      Without 2.4 (1.0) 1.5 (1.1) 1.0 (1.0) 1.0 (1.1) 1.9 (0.7) 2.2 (1.0) 1.3 (0.9) 9.4 (4.5) 0.834

PSQI, Pittsburgh Sleep Quality Index; SD, standard deviation; ASA, acetylsalicylic acid intolerance. Allergy by patient history was self-reported. Allergy by testing was indicated if subjects underwent skin prick or mRAST testing. P-values are reported for differences in PSQI total score for each patient characteristic.