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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Psychopharmacology (Berl). 2018 Oct 5;235(12):3435–3441. doi: 10.1007/s00213-018-5056-8

Table 2.

Interactions between treatment group and age (dichotomized at age 40, model-based estimates)

CO boost (ppm) Mass tobacco burned (g)
Treatment Group Age Group Mean SE Mean SE
VLNCC < 40 2.52 0.15 0.61 0.01
>= 40 1.67 0.21 0.54 0.01
NNCC < 40 2.19 0.14 0.61 0.01
>= 40 2.54 0.18 0.59 0.01