Table 2: Spearman rho correlation coefficients. Significance is denoted: , , (2-tailed). Sample size of 38 was reduced slightly for some comparisons because of missing data (see text).

VariablePSQITime spent asleepSleep efficiency

HRSD0.550***−0.422**−0.655***
Days since loss−0.272
−0.257
−0.028
TRIG score0.092
−0.610***−0.276