From: Validation of the Pittsburgh sleep quality index in community dwelling Ethiopian adults
Components of the PSQI | PSQI (Seven components) | PSQI (Five components) | |||
---|---|---|---|---|---|
Factor 1 | Factor 2 | Factor 3 | Factor 1 | Factor 2 | |
PSQI component of sleep quality | .88 | .05 | .08 | .88 | .05 |
PSQI component of sleep latency | .87 | −.13 | .18 | .87 | −.13 |
PSQI component of sleep duration | .10 | −.96 | .01 | .10 | −.97 |
PSQI component of sleep efficiency | .09 | −.97 | .06 | .09 | −.97 |
PSQI component of sleep disturbances | .62 | −.13 | .08 | .62 | −.12 |
PSQI component of sleep medication | .16 | −.03 | .78 | ||
PSQI component of daytime dysfunction | .06 | −.03 | .81 |