. Author manuscript; available in PMC: 2021 Oct 1.

Published in final edited form as: Psychopharmacology (Berl). 2020 Jun 29;237(10):3109–3116. doi: 10.1007/s00213-020-05596-8

Table 3.

Caffeine intake and cognitive scores derived from the ABCD Youth Substance Use Interview and the NIH toolbox.

	Mean (Rijlaarsdam et al.)	Median (IQR)	Range
Caffeine Intake / mg per day	13.00 (43.73)	1.76 (9.49)	0 – 1195
Crystallized Cognitive Skills
Vocabulary Comprehension	106.79 (16.99)	106.00 (22.00)	0 –208
Reading Decoding	102.52 (19.12)	100.00 (20.00)	64 – 206
Fluid Cognitive Skills
Inhibitory Control	95.43 (13.67)	97.00 (22.00)	62 – 171
Working Memory	100.55 (14.78)	103.00 (21.00)	39 – 194
Cognitive Flexibility	96.72 (15.16)	94.00 (17.00)	65 – 191
Processing Speed	93.79 (22.10)	95.00 (26.00)	20 – 185
Episodic Memory	100.96 (16.11)	99.00 (21.00)	64 – 172

Abbreviations: SD, standard deviation; IQR, interquartile range.