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. Author manuscript; available in PMC: 2019 Mar 8.
Published in final edited form as: Am J Psychiatry. 2018 Jun 20;175(11):1111–1120. doi: 10.1176/appi.ajp.2018.17101124

TABLE 3.

Gender Distribution and Medication Status in the Samples Included in the Meta-Analyses of fMRI and EEG Studies of Reward Processing in Depressiona

  Overall
 Subjects Under Age 18
 Subjects Age 18 and Older
Characteristic Mean SD Range Mean SD Range Mean SD Range
fMRI studies (N=38)
Ageb (years) 29.2 7.5 8–65 13.5 1.6 8–17 34.4 9.5 17–65
Percent femalec 58.3 21.3 16–100 77.7 17.2 50–100 51.8 19.9 16–79
Percent medicated 16.4 30.4 0–100 0.8 1.5 0–4.5 21.7 33.5 0–100
EEG studies (N=12)
Aged (years) 19.9 7.2 8–65 13.9 2.5 8–17 26.0 4.4 18–65
Percent female 70.2 32.2 48–100 87.0 26.0 48–100 70.8 17.4 55–100
Percent medicated 18.7 16.7 0–41 15.8 15.9 4.5–27 20.6 20.5 0–41
a

Some studies did not report these characteristics.

b

Significant difference between groups in mean age, p<0.001.

c

Significant difference between groups in percent female, p<0.01.

d

Significant difference between groups in mean age, p<0.01.