Table 1.
Demographic characteristics of the sample. NS indicates not significant.
| Healthy Control | CHR | Statistic | p ≤ | CHR Boulder | CHR Chicago | Statistic | p ≤ | |
|---|---|---|---|---|---|---|---|---|
| Age | ||||||||
| Mean (SD) | 19.86 (2.63) | 19.92 (2.05) | t(86) = 0.11 | NS | 19.61 (1.78) | 20.40 (2.37) | t(49) = 1.35 | NS |
| Gender | ||||||||
| Male | 15 | 29 | 17 | 12 | ||||
| Female | 22 | 22 | 14 | 8 | ||||
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| Total | 37 | 51 | χ2(1, N = 88) = 2.29 | 31 | 20 | χ2(1, N = 51) = 0.13 | NS | |
| Education (years) | ||||||||
| Mean (SD) | 13.68 (2.44) | 13.56 (1.63) | t(58.75) = 0.25 | NS | 13.38 (1.52) | 13.83 (1.80) | t(49) = 0.93 | NS |
| Parent Education | ||||||||
| Mean (SD) | 16.05 (2.60) | 15.71 (2.75) | t(86) = 0.58 | NS | 16.05 (2.52) | 15.20 (3.07) | t(49) = 1.08 | NS |
| Season Completed Survey | ||||||||
| Spring | 7 | 14 | 9 | 5 | ||||
| Summer | 11 | 9 | 7 | 2 | ||||
| Autumn | 12 | 10 | 6 | 4 | ||||
| Winter | 7 | 18 | χ2(3, N = 88) = 5.47 | NS | 9 | 9 | χ2(3, N = 51) = 2.04 | NS |
| Symptoms | ||||||||
| Positive: Mean (SD) | 0.30 (0.66) | 11.63 (4.74) | t(52.66) = 16.84 | 0.001 | 11.16 (4.91) | 12.35 (4.49) | t(49) = 0.87 | NS |
| Negative: Mean (SD) | 0.24 (0.55) | 9.02 (6.96) | t(50.85) = 8.97 | 0.001 | 10.06 (7.92) | 7.40 (4.88) | t(49) = 1.49 | NS |
| Disorganized: Mean (SD) | 0.27 (0.56) | 4.86 (3.47) | t(53.56) = 9.29 | 0.001 | 5.29 (3.88) | 4.2 (2.67) | t (49) = 1.10 | NS |
| General: Mean (SD) | 0.59 (0.98) | 7.06 (3.94) | t(58.39) = 11.25 | 0.001 | 7.39 (4.09) | 6.55 (3.73) | t(49) = 0.74 | NS |