Table 1. Age, sex, ethnicity, mood and WASI total IQ distributions.

Age at baseline	Age at short follow-up	Age at long follow-up	Mood at baseline (MFQ)	IQ (WASI) at baseline	Sex	Ethnicity (UK convention)
Mean: 18.95	Mean: 19.38	Mean: 20.29	Mean: 18.39	Mean: 110.4	Female: 426	Asian: 70
Quartile 1: 16.45	Quartile 1: 17.39	Quartile 1: 17.69	Quartile 1: 8.00	Quartile 1: 103.0	Male: 392	Black: 34
Quartile 3: 21.23	Quartile 3: 21.30	Quartile 3: 22.51	Quartile 3: 24.00	Quartile 3: 118.0		Mixed: 54
Range: 14.10–24.00	Range: 14.93–24.91	Range: 15.11–26.49				Other: 18
						White: 591
						Undisclosed: 51