Skip to main content
. Author manuscript; available in PMC: 2020 Mar 1.
Published in final edited form as: Neurosci Biobehav Rev. 2019 Jan 4;98:85–94. doi: 10.1016/j.neubiorev.2018.12.030

Table 1b.

Characteristics of Samples Included in Hemispheric Structure Analyses

Schizophrenia
 Controls
Characteristic N Mean Across Samples SD Across Samples N Mean Across Samples SD Across Samples
Group Size 136 32.81 29.41 136 34.88 35.50
Age 123
(121)		 30.90
(7.13)		 8.57
(3.14)		 123
(121)		 30.76
(7.14)		 8.66
(3.32)
Sex 136 64.94 32.95 136 62.86 32.88
Handedness 88 92.73 10.09 88 93.48 9.23
Ethnicity 18 61.55 22.02 18 70.72 18.02
Education 54
(54)		 12.41
(2.53)		 2.01
(1.00)		 54
(54)		 14.13
(2.54)		 2.14
(1.16)
Socioeconomic Status 31
(30)		 2.91
(1.07)		 0.59
(0.44)		 31
(30)		 2.60
(0.93)		 0.65
(0.31)
Intelligence Quotient 21
(21)		 94.14
(13.62)		 9.14
(4.44)		 21
(21)		 107.81
(11.78)		 6.62
(3.20)
Height 28
(28)		 169.19
(8.07)		 6.72
(2.46)		 28
(28)		 169.84
(7.66)		 6.64
(2.73)
Scanning Parameters
Magnetic Field Strength
 0.5 T 1 0.7%
 1.0 T 5 3.7%
 1.5 T 108 79.4%
 3.0 T 15 11.0%
Slice Thickness 105 1.69 1.00
Slice Gap Width 78 0.07 0.34
Intrarater Reliability 68 0.90 0.08
Interrater Reliability 36 0.93 0.04
Clinical Characteristics
First-Episode (%) 36 95.85 15.30
Chronic (%) 11 94.24 19.10
Inpatient (%) 10 75.93 36.40
Outpatient (%) 13 80.04 35.71
Medicated (%) 46 93.04 16.41
Antipsychotic Dosage 48
(46)		 536.81
(437.69)		 206.44
(199.18)
Illness Onset 57
(57)		 22.65
(5.33)		 3.27
(1.95)
Illness Duration 83
(81)		 9.41
(5.87)		 7.84
(3.86)
Symptom Severity 21
(21)		 74.09
(16.62)		 11.98
(5.96)

Note. Group proportions or means within samples are shown with standard deviations enclosed in parentheses where appropriate. N (number of samples reporting a given characteristic), sex (proportion male), handedness (proportion right-handed), ethnicity (proportion European ancestry), education (years of formal education), height (centimeters), socioeconomic status (parental socioeconomic status rated on the Hollingshead Index), antipsychotic dosage (daily dosage in chlorpromazine equivalents only for antipsychotic exposed samples), illness onset (age at schizophrenia onset), symptom severity (Positive and Negative Symptom Scale overall score).