Table 1 Demographic and clinical characteristics of patients with early-onset schizophrenia by genders from 2008 to 2017 in Brazil
Variables | Overall N = 49,943 | Male N = 34,025 | Female N = 15,918 | P |
|---|---|---|---|---|
Demographic characteristics | ||||
Age at study entry (years)* | ||||
10–12 | 18,229 | 13,395 (73.5) | 4834 (26.5) | < 0.001 |
13 to 17 years | 31,714 | 20,630 (65.1) | 11,084 (34.9) | |
Mean age (SD)& | ||||
13.6 (±2.48) | 13.45 (±2.51) | 13.91 (±2.40) | < 0.001 | |
Race* | ||||
White | 6096 | 4137 (67.9) | 1959 (32.1) | 0.451 |
Black | 579 | 404 (69.8) | 175 (30.2) | |
Pardo | 4154 | 2795 (67.3) | 1359 (32.7) | |
Yellow | 1073 | 733 (68.3) | 340 (31.7) | |
Indigenous | 26 | 21 (80.7) | 5 (19.3) | |
No information | 38,015 | 25,935 (68.2) | 12,080 (31.8) | |
Year of study entry* | ||||
2008 | 8272 | 5710 (69.1) | 2562 (30.9) | 0.113 |
2009 | 4341 | 2899 (66.8) | 1442 (33.2) | |
2010 | 4654 | 3188 (68.5) | 1466 (31.5) | |
2011 | 4711 | 3198 (67.9) | 1513 (32.1) | |
2012 | 4156 | 2812 (67.6) | 1344 (32.3) | |
2013 | 4380 | 2929 (66.9) | 1451 (33.1) | |
2014 | 4582 | 3148 (68.7) | 1434 (31.3) | |
2015 | 5191 | 3575 (68.9) | 1616 (31.1) | |
2016 | 5108 | 3501 (68.5) | 1607 (31.5) | |
2017 | 4548 | 3065 (67.4) | 1483 (32.6) | |
Geographic region of residence at study entry* | ||||
North | 1319 | 840 (63.7) | 479 (36.3) | < 0.001 |
Northeast | 10,244 | 6858 (66.9) | 3386 (33.1) | |
Southeast | 28,835 | 19,703 (68.3) | 9132 (31.7) | |
South | 6645 | 4679 (70.4) | 1966 (29.6) | |
Midwest | 2900 | 1945 (67.1) | 955 (32.9) | |
Clinical characteristics | ||||
Diagnosis at study entry* | ||||
Paranoid schizophrenia | 35,887 | 24,394 (67.9) | 11,493 (32.1) | 0.240 |
Other types of schizophrenia | 14,056 | 9631 (68.5) | 4425 (31.5) | |
Atypical antipsychotics used at study entry* | ||||
Clozapine | 1092 | 731 (66.9) | 361 (33.1) | 0.395 |
Olanzapine | 9799 | 6511 (66.5) | 3288 (33.5) | < 0.001 |
Risperidone | 31,193 | 22,497 (72.1) | 8696 (27.9) | < 0.001 |
Quetiapine | 6183 | 3357 (54.3) | 2826 (45.7) | < 0.001 |
Ziprasidone | 1665 | 919 (55.2) | 746 (44.8) | < 0.001 |