Table 3

Agreement between social class data based on childhood reports and adult reports

		Childhood reports						Total
		I	II	III NM†	III M‡	IV	V	Total
*Level agreement = 61.4%; weighted κ statistic = 0.56, p<0.001; †non-manual; ‡manual. Occupational social class was categorised as follows: I (highest)—professional; II—managerial; IIINM—non-manual, skilled non-manual; IIIM—manual, skilled manual; IV—manual, semi-skilled; and V (lowest)—unskilled manual.
Adult reports	I	165	60	9	44	5	1	284
	II	57	511	186	153	28	28	963
	IIINM	14	96	338	63	42	8	561
	IIIM	3	131	168	2241	328	232	3103
	IV	2	38	179	282	419	163	1083
	V	1	0	8	53	58	206	326
	Total	242	836	888	2836	880	638	6320*