Table 1 Descriptive Statistics for Caffeine Withdrawal Across Time Points and Groups.

From: Effect of Genetic Information and Information About Caffeine Content on Caffeine Withdrawal Symptoms

  mean sd n
Time
 Pre-Beverage 45.13 ±16.6 80
 Post-Beverage 31.35 ±15.4 80
Priming
 Gene + 39.15 ±18.2 40
 Gene − 37.35 ±16.5 40
Caffeine Information
 Told Caffeine 38.2 ±16.8 40
 Told Decaf 38.3 ±18.1 40
Priming × Time
 Gene +/Pre 44.8 ±18.4 40
 Gene −/Pre 45.45 ±14.7 40
 Gene +/Post 33.5 ±16.4 40
 Gene −/Post 29.25 ±14.2 40
Caffeine Information × Time
 Told Caffeine/Pre 48.28 ±15.5 40
 Told Decaf/Pre 41.98 ±17.2 40
 Told Caffeine/Post 28.13 ±11.0 40
 Told Decaf/Post 34.63 ±18.4 40
Priming x Caffeine Information × Time
 Gene +/Told Caffeine/Pre 51.4 ±16.4 20
 Gene + /Told Decaf/Pre 38.2 ±18.4 20
 Gene −/Told Caffeine/Pre 45.15 ±14.2 20
 Gene −/Told Decaf/Pre 45.75 ±15.6 20
 Gene +/Told Caffeine/Post 31.1 ±11.2 20
 Gene + /Told Decaf/Post 35.9 ±20.4 20
 Gene −/Told Caffeine/Post 25.15 ±10.3 20
 Gene −/Told Decaf/Post 33.35 ±16.6 20