Table 2.

Descriptive statistics of predictors and insomnia severity

	M	SD	Min	Max	N
Predictors
SPQ total score	43.40	15.59	3.00	93.00	550
SPQ smell	13.79	5.73	0.00	30.00	550
SPQ vision	7.50	3.33	0.00	18.00	550
SPQ hearing	7.21	3.04	0.00	15.00	550
SPQ touch	10.66	4.77	0.00	26.00	550
SPQ taste	4.24	2.22	0.00	11.00	550
Social skills	21.63	3.93	7.00	28.00	549
Outcome measure
Insomnia Severity Index	9.50	6.01	0.00	28.00	623

SPQ Sensory Perception Quotient