Skip to main content

Table 1 Agreement between manual and computerized detection and analysis of LM, evaluated with intraclass correlation coefficients

From: Validation of a leg movements count and periodic leg movements analysis in a custom polysomnography system

  Manual quantification Computerized quantification Intraclass correlation coefficient P values
LM index right
 LMS/h, TST 12.3 (6–37.4) 13.9 (6.3–37.3) 0.997 (0.995–0.999) <0.001 *
 LMS/h, NREM sleep 13.8 (4.8–44) 13.9 (5.2–43.7) 0.998 (0.996–0.999) <0.001 *
 LMS/h, REM sleep 12.8 (6.1–33.7) 11.9 (5.4–33.5) 0.989 (0.979–0.994) <0.001 *
 LMW 59.7 (39.5–80) 63.7 (48.4–86.3) 0.911 (0.839–0.952) <0.001 *
LM index left
 LMS/h, TST 12.9 (5.4–32) 13.1 (5.4–32.1) 0.995 (0.991–0.998) <0.001 *
 LMS/h, NREM sleep 13.3 (3.8–35.7) 13.5 (4.1–36.1) 0.996 (0.992–0.998) <0.001 *
 LMS/h, REM sleep 10.5 (7–24.1) 10.3 (7–25.1) 0.991 (0.982–0.995) <0.001 *
 LMW 57.8 (42.2–76.6) 55.2 (43.9–79.6) 0.939 (0.888–0.967) <0.001 *
  1. LM leg movements, LMS leg movements during sleep, LMW leg movements during wakefulness, TST total sleep time
  2. *Significant p-values after correction for multiple comparisons according to Bonferroni are given in bold letters