Table 4.

Adjusted hazard ratios for outcomes in adolescence after key stage (KS) 3 and after KS4^a

	Depression after KS3 (age 14–20) n = 624 608	Depression before KS3 (age 12–14) N = 620 840	Self-harm after KS3 (age 14–20) N = 624 466	Self-harm before KS3 (age 12–14) N = 621 151	Depression after KS4 (age 16–20) n = 618 936	Depression before KS4 (age 12–16) N = 602 038	Self-harm after KS4 (age 16–20) N = 619 064	Self-harm before KS4 (age 12–16) N = 619 413
Not achieving at age 14	1.38 (1.28–1.48)	1.41 (1.30–1.53)	1.61 (1.45–1.79)	1.63 (1.43–1.87)	–	–	–	–
Not achieving at age 16	–	–	–	–	1.50 (1.30–1.73)	1.44 (1.04–1.96)	1.67 (1.26–2.19)	2.11 (1.48–3.03)

Results in bold are significant.

^a.Adjusted for KS1, KS2, free school meals and female gender.