Table 4

Regression analyses on Auditory Verbal Learning Test (AVLT) for subjects born in 1936, whose mental ability was tested in Aberdeen in 1947 where they were re-examined in 2003–2004 at about 67 years of age

Term fitted	Whole study				Exposed only
	Exposure by group		Cumulative exposure		Cumulative exposure
	Estimated coefficient	95% CI	Estimated coefficient	95% CI	Estimated coefficient		95% CI
Constant	36.19		36.22		40.78
Mental ability at age 11 years	0.44	0.33 to 0.56	0.44	0.33 to 0.56	0.38	0.17 to 0.60
Pack-years of smoking	−0.03	−0.09 to 0.03	−0.03	−0.09 to 0.03	−0.06	−0.16 to 0.04
Alcohol	0.13	−0.04 to 0.30	0.13	−0.04 to 0.30	0.08	−0.19 to 0.34
Sex, women vs men	10.28	7.22 to 13.34	10.27	7.19 to 13.35	7.76	2.66 to 12.86
Exposed vs unexposed	2.20	−0.70 to 5.10	2.17	−0.91 to 5.25
Solvent cumulative exposure			−0.01	−0.27 to 0.26	−0.03	−0.31 to 0.24
Residual SD and df	12.55	320	12.57	319	12.82	114

Table shows estimated regression coefficients and 95% CIs.