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Table 2 Sleep parameters among diabetic neuropathy patients (group I), diabetic patients without neuropathy (group II) and healthy control (group III)

From: Sleep disturbances in diabetic peripheral neuropathy patients: a clinical and polysomnographic study

  Group I Group II Group III ANOVA
Range Mean ± SD Range Mean ± SD Range Mean ± SD f value p value
Mean latency MSLT (min) 4–17 9.2 ± 4.03 10–18 15.1 ± 3.44 12–19 16.30 ± 2.21 17.27 < 0.0001*
Sleep period time (hours) 5.2–8.7 6.79 ± 1.06 5.3–8.6 6.79 ± 1.03 5.2–8.7 6.78 ± 1.09 0.00066 0.999
Total sleep time (hours) 4.8–8.5 6.29 ± 1.07 5. –8.4 6.70 ± 1.04 5.2–8.5 6.68 ± 1.05 0.692 0.5068
Sleep latency (min) 4–7 8.45 ± 4.04 7–35 24.70 ± 9.38 8–35 26.3 ± 8.82 29.96 < 0.0001*
Sleep efficiency (%) 49–85 63.3 ± 11.78 73–88 80.6 ± 4.27 77–94 85.8 ± 6.14 24.11 < 0.0001*
Sleep fragmentation (cycles/night) 7–43 18.35 ± 9.06 6–15 9.4 ± 2.71 6–11 8.2 ± 1.54 10.30 0.0003*
Apnea Hypopnea Index (/hour) 3.1–83.3 31.32 ± 16.4 1.2–22.1 6.57 ± 7.01 1.6–19.2 5.97 ± 6.14 16.199 < 0.0001*
Pulse Transit Time (msec) 121–245 184 ± 23.2 154–276 232 ± 12.3 178–281 241 ± 13.2 13.6 < 0.0001*
Desaturation index (/hour) 3–32 14.9 ± 9.7 2–8 3.8 ± 1.87 2–7 3.7 ± 1.6 12.55 < 0.0001*
Lowest O2 saturation (%) 71–95 85.15 ± 3.78 87–94 90.9 ± 2.55 87–95 92.5 ± 2.50 6.522 0.0023*
REM latency (min) 64–105 84.7 ± 12.38 63–102 85.4 ± 11.82 65–104 85.70 ± 12 0.0259 0.974
REM % of TST 8–21 14 ± 4.30 18–25 21.8 ± 2.04 18–27 21.1 ± 2.02 24.10 < 0.0001*
Arousal index (/hour) 6–35 13.8 ± 7.39 3–14 6.5 ± 3.02 3–11 5.5 ± 2.63 9.585 0.0004*
Snore index (/hour) 23–632 259.3 ± 174 10–67 29.9 ± 19.8 9–47 17 ± 11.2 17.76 < 0.0001*
Snore % TST 4–52 23.4 ± 14.27 3–13 6.1 ± 3.07 2–10 4.6 ± 3.27 14.93 < 0.0001*
PLMs index (/hour) 17–91 50.3 ± 22.6 5–27 14.4 ± 6.73 4–18 9.9 ± 6.66 27.60 < 0.0001*
  1. MSLT multiple sleep latency test, PLMs periodic limb movements, REM rapid eye movement, TST total sleep time
  2. *Significant