Table 4.

Evaluation of depression symptom in normal controls and MGD group.

Parameters	Normal controls (n = 114)	MGD group (n = 830)	P value
Modified self-rating depression scale	27.9 ± 6.2	30.7 ± 7.7	0.001*
Without depression [n (%)]	110 (96.5%)	752 (90.6%)	0.036*
With depression [n (%)]	4 (3.5%)	78 (9.4%)
Mild depression	4 (3.5%)	49 (5.9%)	0.517
Moderate depression	0 (0)	24 (2.9%)
Severe depression	0 (0)	5 (0.6%)

Depression was assessed using the self-rating scale and definite depression was defined as having a depression score of 40 or higher. The severity of depression was rated as mild, 40–50 scores; moderate, 50–60 scores; and severe, above 60 scores.

*P < 0.05 was considered statistically significant.