Table 3.

Relation between qualitative fluency variables and other cognitive domains.

	Language	Memory	Processing speed	Executive functioning
Category fluency
Total number of words	0.32 (0.12–0.52)	0.39 (0.19–0.59)	0.25 (0.03–0.45)	0.16 (−0.01–0.35)
Switches	0.21 (−0.05–0.46)	0.22 (−0.03–0.46)	0.15 (−0.11–0.41)	0.06 (−0.18–0.30)
Clusters	0.19 (−0.03–0.42)	0.33 (0.09–0.56)	0.23 (−0.02–0.47)	0.09 (−0.12–0.32)
Mean cluster size	0.12 (−0.15–0.38)	0.09 (−0.17–0.36)	0.11 (−0.17–0.38)	0.07 (−0.18–0.32)
Lexical frequency	0.41 (0.20–0.62)	0.27 (0.05–0.48)	0.11 (−0.11–0.33)	0.09 (−0.11–0.30)
Age of acquisition	0.39 (0.19–0.60)	0.32 (0.11–0.53)	0.12 (−0.10–0.33)	0.05 (−0.14–0.25)
Neighborhood density	0.26 (0.01–0.50)	0.12 (−0.12–0.37)	−0.02 (−0.28–0.24)	0.05 (−0.18–0.29)
Word length	0.19 (−0.06–0.44)	0.13 (−0.12–0.38)	0.01 (−0.25–0.27)	0.05 (−0.19–0.29)
Letter fluency
Total number of words	0.02 (−0.21–0.25)	0.28 (0.05–0.51)	0.28 (0.03–0.52)	0.29 (0.07–0.51)
Switches	−0.06 (−0.30–0.19)	0.20 (−0.04–0.45)	0.24 (−0.02–0.50)	0.25 (0.01–0.48)
Clusters	0.17 (−0.08–0.41)	0.20 (−0.04–0.44)	0.19 (−0.06–0.44)	0.25 (0.01–0.48)
Mean cluster size	0.17 (−0.09–0.43)	0.03 (−0.23–0.29)	0.13 (−0.15–0.40)	0.07 (−0.18–0.32)
Lexical frequency	0.38 (0.14–0.62)	−0.005 (−0.25–0.24)	−0.13 (−0.38–0.13)	−0.11 (−0.35–0.12)
Age of Acquisition	0.25 (−0.002–0.50)	0.10 (−0.15–0.35)	0.01 (−0,25–0.27)	0.11 (−0.13–0.35)
Neighborhood density	0.20 (−0.05–0.46)	0.02 (−0.24–0.28)	−0.12 (−0.39–0.14)	0.10 (−0.14–0.35)
Word length	0.25 (−0.004–0.50)	0.04 (−0.22–0.29)	−0.17 (−0.44–0.09)	−0.03 (−0.26–0.22)

Data are standardized regression coefficient Beta (95% confidence interval). All regression models were adjusted for age and sex. Significant associations are depicted in bold. Data for lexical frequency and neighborhood density were inversed.