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. 2020 Jul 8;77(11):1–11. doi: 10.1001/jamapsychiatry.2020.1619

Table 1. Demographic Characteristics of Participants.

Characteristic No. (%) P valuea
Untreated patient group (n = 197) Control group (n = 220)
Sex
Male 101 (51.3) 118 (53.6) .63
Female 96 (48.7) 102 (46.4)
Age, y
Range 19-81 26-78 .94
Mean (SD) 52.1 (11.8) 52.1 (11.2)
Median (IQR) 52.0 (44.0-61.0) 52.0 (45.0-58.5)
Ethnicity
Han 116 (58.9) 128 (58.2) .89
Hui 81 (41.1) 92 (41.8)
Location of residence
Urban 15 (7.6) 13 (5.9) .49
Rural 182 (92.4) 207 (94.1)
Education, y
Quartile
0 59 (29.9) 69 (31.4) .09
1-3 49 (24.9) 36 (16.4)
4-6 42 (21.3) 65 (29.5)
≥7 47 (23.9) 50 (22.7)
Range 0-12 0-14 .96
Mean (SD) 3.7 (3.4) 3.7 (3.4)
Median (IQR) 3.0 (0-6.0) 4.0 (0-6.0)
Marital status
Never married 46 (23.4) 1 (0.5) <.001
Currently married 89 (45.2) 208 (94.5)
Previously married 62 (31.4) 11 (5.0)
Current living situation
Lives alone 54 (27.4) 3 (1.4) <.001
Lives with family members 143 (72.5) 217 (98.6)
Self-reported family financial condition in previous month
Excellent 0 2 (0.9) <.001
Good 8 (4.1) 53 (24.1)
Average 40 (20.3) 108 (49.1)
Poor 106 (53.8) 52 (23.6)
Very poor 43 (21.8) 5 (2.3)
Self-reported level of physical activity in previous 3 mo (0-6)b
Range 0-6 3-6 <.001
Mean (SD) 3.2 (2.5) 6.0 (0.2)
Median (IQR) 3.0 (0-6.0) 6.0 (6.0-6.0)
Age at psychosis onset, y
Range 10.7-56.3 NA NA
Mean (SD) 28.6 (9.0) NA
Median (IQR) 27.3 (22.0-33.8) NA
Duration of untreated psychosis, y
Range 0.2-58.9 NA NA
Mean (SD) 23.5 (12.3) NA
Median (IQR) 22.9 (14.9-32.8) NA

Abbreviations: IQR, interquartile range; NA, not applicable.

a

P values were derived from χ2 tests for group differences in categorical variables and Wilcoxon rank sum tests for group differences in continuous variables.

b

Self-reports of the level of physical activity in each of the last 3 months were rated as 0 (significantly reduced), 1 (somewhat reduced), or 2 (not reduced), resulting in a total score of 0 to 6 with higher scores representing higher levels of physical activity.