Table 2.

Multivariate analysis of covariance (MANCOVA)

	Beta	p-value	95% confidence interval
			Lower Bound	Upper Bound
Depression (ADRS) score
Alexithymia score (TAS20)	0.44	< 0.001	0.377	0.512
House crowding index	− 2.50	0.032	− 4.776	− 0.218
Total aggression score
Alexithymia score (TAS20)	0.78	< 0.001	0.593	0.973
Gender (females vs males*)	− 6.11	0.002	− 10.023	− 2.189
Cigarette smoking (yes vs no*)	− 13.13	0.009	− 22.939	− 3.310
Alcohol drinking (yes vs no*)	− 8.25	< 0.001	− 12.325	− 4.171
Physical aggression
Alexithymia score (TAS20)	0.24	< 0.001	0.172	0.304
Gender (females vs males*)	− 3.85	< 0.001	− 5.204	− 2.497
Alcohol drinking (yes vs no*)	− 2.34	0.001	− 3.753	− 0.935
Verbal aggression score
Alexithymia score (TAS20)	0.14	< 0.001	0.094	0.188
House crowding index	− 1.70	0.035	− 3.292	− 0.121
Cigarette smoking (yes vs no*)	− 2.78	0.025	− 5.216	− 0.350
Anger score
Alexithymia score (TAS20)	0.22	< 0.001	0.163	0.275
Cigarette smoking (yes vs no*)	− 2.91	0.047	− 5.780	− 0.044
Alcohol drinking (yes vs no*)	− 2.76	< 0.001	− 3.952	− 1.569
Hostility score
Alexithymia score (TAS20)	0.19	< 0.001	0.125	0.246
Alcohol drinking (yes vs no*)	− 2.29	0.001	− 3.577	−  0.993

In the global model, the covariates are: age, gender, house crowding index, alexithymia, place of living, cigarette smoking, waterpipe smoking, alcohol drinking

^*Reference group