Table 3.

Interaction analysis of ethnicity and sociodemographic variables with involuntary admission as the outcome using contrast analysis to compare models with and without the interaction terms specified below

	Unadjusted model a				Fully adjusted model b
Interaction terms	N	χ2	df	p-value	N	χ2	df	p-value
Ethnicity and Age	18,569	85.03	56	0.007	18,569	66.71	56	0.155
Ethnicity and Gender	18,596	20.76	14	0.108	18,596	14.29	14	0.428
Ethnicity and Area Deprivation	18,569	103.39	70	0.006	18,569	86.25	70	0.091
Ethnicity and Homelessness	18,569	67.22	14	< 0.001	18,569	15.55	14	0.342
Ethnicity and Migrant Status	18,569	48.19	28	0.010	18,569	22.42	28	0.762

Note. N = total sample. χ² = chi-squared statistic value. df = degrees of freedom

^a Unadjusted model represents the unadjusted interactions of ethnicity with the key sociodemographic variable

^b Fully adjusted model represents the adjusted interaction of ethnicity with the key sociodemographic variable, adjusting for all other sociodemographic variables in the table as well as psychiatric diagnosis and Health of the Nation Outcome Scales items