TABLE 2

Results From Behavioral Checklist by Gender and Pubertal Group

PrepubertalPostpubertal
BoysGirlsBoysGirls
PrePostPrePostPrePostPrePost
Nervous1.10 ± 0.071.02 ± 0.021.12 ± 0.081.04 ± 0.031.1 ± 0.051.02 ± 0.021.10 ± 0.061.00 ± 0.00
Lively2.50 ± 0.22.33 ± 0.232.79 ± 0.262.69 ± 0.282.2 ± 0.212.12 ± 0.192.48 ± 0.182.00 ± 0.17
Happy3.30 ± 0.33.27 ± 0.284.31 ± 0.204.19 ± 0.243.4 ± 0.193.37 ± 0.193.03 ± 0.203.13 ± 0.23
Sad1.10 ± 0.061.02 ± 0.021.08 ± 0.071.00 ± 0.001.10 ± 0.061.06 ± 0.041.48 ± 0.161.35 ± 0.15
Dizzy1.10 ± 0.051.1 ± 0.051.25 ± 0.121.15 ± 0.081.06 ± 0.031.00 ± 0.001.05 ± 0.051.13 ± 0.05
Falling asleep a 1.40 ± 0.121.48 ± 0.121.50 ± 0.191.52 ± 0.201.29 ± 0.081.39 ± 0.111.50 ± 0.151.65 ± 0.17
Body tired1.25 ± 0.081.56 ± 0.151.42 ± 0.171.46 ± 0.171.40 ± 0.921.60 ± 0.121.88 ± 0.181.78 ± 0.17
Need to pee1.17 ± 0.071.69 ± 0.181.15 ± 0.071.69 ± 0.191.12 ± 0.061.44 ± 0.161.58 ± 0.162.38 ± 0.28
Headache1.29 ± 0.141.17 ± 0.071.21 ± 0.151.13 ± 0.081.17 ± 0.071.14 ± 0.051.40 ± 0.131.23 ± 0.09
Can’t sleep1.27 ± 0.131.23 ± 0.091.40 ± 1.191.40 ± 0.201.08 ± 0.051.1 ± 0.061.13 ± 0.071.08 ± 0.04
Irregular heart beat1.23 ± 0.121.17 ± 0.11.17 ± 0.111.15 ± 0.081.02 ± 0.021.08 ± 0.051.05 ± 0.051.03 ± 0.03
Diarrhea1.02 ± 0.021.06 ± 0.041.02 ± 0.021.08 ± 0.081.02 ± 0.021.02 ± 0.021.00 ± 0.001.00 ± 0.00
Impatient1.40 ± 0.161.31 ± 0.111.15 ± 0.081.27 ± 0.161.23 ± 0.081.23 ± 0.081.28 ± 0.091.53 ± 0.17
Hungry2.48 ± 0.252.73 ± 0.282.46 ± 0.252.67 ± 0.262.27 ± 0.172.50 ± 0.221.95 ± 0.192.15 ± 0.24
Cranky1.00 ± 0.001.00 ± 0.001.02 ± 0.021.02 ± 0.021.12 ± 0.061.1 ± 0.051.33 ± 0.121.20 ± 0.11
Motivated b 1.94 ± 0.241.89 ± 0.232.77 ± 0.252.75 ± 0.322.04 ± 0.191.90 ± 0.192.25 ± 0.191.06 ± 0.14
Life is good b 3.30 ± 0.283.23 ± 0.284.10 ± 0.244.23 ± 0.243.62 ± 0.203.40 ± 0.213.35 ± 0.253.08 ± 0.23
Mood swings1.09 ± 0.061.1 ± 0.061.58 ± 0.251.58 ± 0.251.12 ± 0.061.04 ± 0.031.25 ± 0.111.20 ± 0.11
Muscle twitch1.08 ± 0.051.19 ± 0.081.06 ± 0.051.06 ± 0.051.04 ± 0.031.06 ± 0.041.03 ± 0.031.10 ± 0.06
Talkative1.46 ± 0.111.40 ± 0.121.67 ± 0.161.71 ± 0.191.65 ± 0.131.60 ± 0.141.75 ± 0.181.55 ± 0.13
Queasy b 1.04 ± 0.041.04 ± 0.031.10 ± 0.071.04 ± 0.031.02 ± 0.021.04 ± 0.031.03 ± 0.031.03 ± 0.03
Heart racing1.02 ± 0.021.1 ± 0.051.23 ± 0.091.23 ± 0.091.08 ± 0.051.17 ± 0.091.03 ± 0.031.15 ± 0.09
Can’t sit still1.15 ± 0.051.48 ± 0.191.48 ± 0.211.60 ± 0.241.35 ± 0.111.46 ± 0.131.13 ± 0.071.48 ± 0.14
Ear ringing c 1.09 ± 0.051.04 ± 0.041.31 ± 0.151.31 ± 0.151.08 ± 0.051.10 ± 0.041.00 ± 0.001.05 ± 0.05
Energetic b 1.94 ± 0.21.90 ± 0.22.34 ± 0.282.60 ± 0.312.02 ± 0.191.96 ± 0.181.83 ± 0.191.68 ± 0.15
Stomachache b 1.1 ± 0.061.02 ± 0.021.21 ± 0.121.08 ± 0.051.10 ± 0.061.1 ± 0.051.10 ± 0.061.08 ± 0.06
Strong a , b , c 2.56 ± 0.242.52 ± 0.252.96 ± 0.302.92 ± 0.282.42 ± 0.232.25 ± 0.221.76 ± 0.181.33 ± 0.10
Sweaty a , b , c 1.1 ± 0.071.06 ± 0.031.08 ± 0.041.23 ± 0.051.23 ± 0.081.19 ± 0.081.08 ± 0.041.13 ± 0.09
Shaky1.2 ± 0.071.23 ± 0.071.23 ± 0.11.52 ± 0.201.10 ± 0.051.19 ± 0.081.15 ± 0.071.33 ± 0.14
Sleepy c 1.6 ± 0.141.71 ± 0.151.48 ± 0.181.44 ± 0.181.35 ± 0.171.48 ± 0.181.93 ± 0.182.18 ± 0.20
Tired b 1.62 ± 0.141.75 ± 0.151.71 ± 0.201.73 ± 0.201.56 ± 0.131.65 ± 0.112.10 ± 0.162.30 ± 0.17
  • Data are shown as pre and post caffeine administration. presented as means ± SEMs.

  • a Significant interaction between caffeine treatment and pre/post (P < .05).

  • b Significant interaction between caffeine treatment, pre/post, gender, and pubertal group (P < .05).

  • c Significant interaction between caffeine treatment, pre/post, and gender (P < .05).