Table 1.

Descriptive statistics for social strata dimensions of the sample.

	No University		University
Dimension of social identity or position	N	%	N	%
Total	2605	100	2791	100
Adolescent mental distress (GHQ) at ages 15 and 17
No mental distress at both ages	1214	46.6	1202	43.1
Mental distress at either age	1391	53.4	1589	56.9
Sex
Male	1216	46.7	1179	42.2
Female	1389	53.3	1612	57.8
Social deprivation (IDACI)
Lowest social deprivation	916	35.2	1322	47.4
Medium social deprivation	912	35.0	895	32.1
Highest social deprivation	777	29.8	574	20.6
Sexual identity
Heterosexual/straight	2456	94.3	2620	93.9
Sexual minority	149	5.7	171	6.1
Ethnicity
White	2047	78.6	1875	67.2
Black	106	4.1	186	6.7
Asian	324	12.4	564	20.2
Other Ethnic Group (including Mixed)	128	4.9	166	5.9