Table 2.

Results of the Effort/Reward Imbalance Test and Pittsburgh Sleep Quality Index.

Psycho-Diagnostic Tools	Mean ± SD	Minimum	Maximum
ERI 1 (TOTAL SCORE)	36.20 ± 5.54	22	53
EFFORT	4.48 ± 2.22	3	12
REWARD	22.00 ± 5.11	7	28
E/R 2	0.106 ± 0.072	0.046	0.396
OVERCOMMITMENT	9.38 ± 3.76	6	21
PSQI 3	3.96 ± 3.13	0	13

¹ ERI: effort reward imbalance; ² E/R: effort/reward ratio; ³ PSQI: Pittsburgh sleep quality index.