Table 4. FSIQ, VIQ and PIQ at age 8 years and lifetime manic features score in young adulthood.

	Unadjusted (N=2407)		Adjusted (N=1881)a
	Regression coefficient (95% CI)	P	Regression coefficient (95% CI)	P
FSIQ
>70	−7.00 (–11.47 to –2.53)	0.002	−6.87 (–12.42 to –1.32)	0.015
70–79	−8.23 (–12.70 to –3.76)	0.001	−8.75 (–13.87 to –3.64)	0.001
80–89	−3.72 (–6.21 to –1.23)	0.003	−4.84 (–7.87 to –1.80)	0.002
90–109	Referent group
110–119	0.43 (–0.97 to 1.83)	0.548	0.55 (–1.04 to 2.13)	0.498
120–129	2.89 (1.18 to 4.60)	0.001	2.34 (0.46 to 4.24)	0.015
≥130	2.89 (1.32 to 4.46)	0.001	1.86 (–0.02 to 3.75)	0.053
VIQ
>70	−9.94 (–17.53 to –2.35)	0.010	−2.77 (–10.43 to 4.88)	0.478
70–79	−6.08 (–11.71 to –0.41)	0.035	−11.66 (–18.72 to –4.60)	0.001
80–89	−5.18 (–7.75 to –2.60)	0.001	−5.22 (–8.37 to –2.07)	0.001
90–109	Referent group
110–119	0.85 (–0.62 to 2.32)	0.259	0.84 (–0.82 to 2.50)	0.320
120–129	2.76 (1.23 to 4.29)	0.001	2.56 (0.80 to 4.32)	0.004
≥130	2.78 (1.16 to 4.40)	0.001	1.91 (–0.03 to 3.85)	0.053
PIQ
>70	−3.44 (–8.39 to 1.51)	0.173	−4.45 (–10.37 to 1.47)	0.141
70–79	−3.00 (–6.14 to 0.14)	0.062	−3.40 (–6.96 to 0.16)	0.061
80–89	−0.75 (–2.65 to 1.16)	0.441	−1.26 (–3.38 to 0.86)	0.245
90–109	Referent group
110–119	1.00 (–0.50 to 2.50)	0.193	0.67 (–1.02 to 2.36)	0.437
120–129	2.56 (0.87 to 4.26)	0.003	2.12 (0.26 to 3.99)	0.026
≥130	2.96 (0.97 to 4.94)	0.004	1.87 (–0.36 to 4.10)	0.100

FSIQ, full-scale IQ; VIQ, verbal IQ; PIQ, performance IQ.

^aAdjusted for gender, ethnicity, maternal social class, maternal age >40, maternal education, maternal history of depression, child left-handedness and version of questionnaire.