TABLE 2.

Pearson Between-Methods Correlations for Corresponding Sleep Measures

Sleep MeasureCorrelation
BISQ-ActigraphBISQ-Daily LogsActigraphy-Daily Logs
Sleep-onset time.540.61*0.96*
Nocturnal sleep latencyNA0.36NA
Nocturnal sleep duration.230.270.87*
Night wakings.42*0.83*0.49*
  • NA indicates not applicable.

  • * P < .0001.

  • P < .001.

  • P < .05.