. 2010 Oct;33(5-3):741–754. doi: 10.1016/j.adolescence.2009.10.006

Table 1.

Selected characteristics of teenagers in the SHARE study at waves 1, 2 and 3.

N values are unweighted.		Wave 1			Wave 2 eligible sample			Wave 3 eligible sample
		Male	Female	All	Male	Female	All	Male	Female	All
		3822	3794	7616	2415	2745	5160	745	1429	2174
Gender (%)	Female			50			50			50
Ethnic group (%)	Non-white	4	4	4	5	4	4	4	4	4

Family background

Highest parental social class (%)	Professional	8	8	8	8	8	8	9	9	9
	Managerial/Technical	36	36	36	36	34	35	39	35	37
	Skilled non-manual	25	25	25	25	25	25	24	25	25
	Skilled manual	19	18	18	18	18	18	17	19	18
	Partly skilled	9	10	9	8	10	9	8	9	9
	Unskilled	4	4	4	4	4	4	3	4	4

Live with both biological parents (%)		71	68	69	71	66	68	74	68	71

Neighbourhood deprivation category (%)	1 (most affluent)	13	13	13	13	12	13	15	12	14
	2	16	17	17	16	17	16	19	16	18
	3	20	18	19	20	18	19	19	20	19
	4	24	24	24	23	25	24	23	23	23
	5	14	15	15	14	16	15	11	17	14
	6	8	9	9	9	9	9	8	8	8
	7 (most deprived)	5	4	4	4	4	4	3	4	4

Highest parent educational level (information not collected at Wave 1) (%)	Degree/advanced qualification				48	45	46	51	45	47
	Attended college/university				24	23	24	23	23	23
	Highers				6	6	6	7	5	6
	Standard grades				12	13	13	12	14	13
	At school post-16				2	1	2	1	1	1
	Left school at 16				8	12	10	7	12	9

Wave 2 academic achievement	Mean grade band score				4.6	5.0	4.8	4.6	5.0	4.8

Leaving school early (%)	Reported at Wave 2 (close to minimum school leaving age)				14	19	17	15	20	17
Leaving school early (%)	Before end of secondary school final year (S6)							55	49	52

Tertiary education (% participation)	Wave 3							58	62	60

Expectations

Expect tertiary education (% likely/very likely)	Wave 1	59	71	65	59	69	64	63	69	66
Expect tertiary education (% likely/very likely)	Wave 2				64	73	68	67	72	70

Expect job (% likely/very likely)	Wave 1	47	36	41	48	37	42	43	35	39
Expect job (% likely/very likely)	Wave 2				40	37	38	36	34	35

Expect cohabit (% likely/very likely)	Wave 1	36	22	29	37	23	30	34	21	27
Expect cohabit (% likely/very likely)	Wave 2				15	15	15	14	15	14

Expect child (% likely/very likely)	Wave 1	15	11	13	15	11	13	11	11	11
Expect child (% likely/very likely)	Wave 2				3	5	4	2	5	3

Risk behaviours

Sexual debut (%)	Wave 1	18	15	17	14	17	15	10	15	12
Sexual debut (%)	Wave 2				25	31	28	25	30	28

Pregnancy/partner pregnancy (%)	Wave 2				3	6	4	2	5	3
Pregnancy/partner pregnancy (%)	Wave 3^a							6	11	9

Truancy (% Strongly agree/agree skip school)	Wave 1	20	15	18	20	17	18	16	15	16

Cigarettes (% regular use)	Wave 1	11	17	14	10	19	15	8	17	13
Cigarettes (% regular use)	Wave 2				19	32	25	20	29	25

Alcohol (% drunk once a week or more)	Wave 1	17	19	18	15	21	18	9	20	15
Alcohol (% drunk once a week or more)	Wave 2				32	31	31	29	30	29

Cannabis (% regular use)	Wave 1	5	2	4	5	3	4	5	2	3
Cannabis (% regular use)	Wave 2				10	5	7	8	4	6

Other psychosocial factors

Current boy/girlfriend (%)	Wave 1	25	26	25	23	28	26	21	27	24
Current boy/girlfriend (%)	Wave 2				26	40	33	28	36	33

Spending money (mean £ per week)	Wave 1	11.3	9.4	10.4	11.2	9.3	10.3	10.6	9.2	9.8
Spending money (mean £ per week)	Wave 2				23.6	24.3	24.0	21.9	24.0	23.1

Parental monitoring (mean score)	Wave 1	2.3	2.1	2.2	2.3	2.1	2.2	2.2	2.1	2.1
Parental monitoring (mean score)	Wave 2				2.6	2.4	2.5	2.6	2.4	2.5

Self-esteem (mean score)	Wave 1	2.1	2.4	2.2	1.9	2.2	2.0	2.0	2.3	2.1
Self-esteem (mean score)	Wave 2				1.9	2.3	2.1	1.9	2.2	2.1

Friends left school (% with half or more)	Wave 1	6	7	7	7	8	8	4	8	6
Friends left school (% with half or more)	Wave 2				19	24	22	19	23	21

Religiosity (% not very/not at all religious)	Wave 1	72	64	68	71	65	68	71	63	67
Religiosity (% not very/not at all religious)	Wave 2				71	69	70	73	67	69

Values at waves 2 and 3 are weighted values

Does not include pregnancy among those reporting sexual debut between waves 2 and 3.