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. 2019 Apr 26;2(4):e192619. doi: 10.1001/jamanetworkopen.2019.2619

Table 1. Sample Demographics.

Demographic No. (%) of Students (N = 96 108) % of Regional Populationa
School grade
3 1226 (1.3) NA
4 10 719 (11.2) NA
5 11 245 (11.7) NA
6 10 996 (11.4) NA
7 11 516 (12.0) NA
8 10 912 (11.4) NA
9 9243 (9.6) NA
10 9222 (9.6) NA
11 9148 (9.5) NA
12 8066 (8.4) NA
Unknown or unreported 3815 (4.0) NA
Educational region
Arecibo 5666 (5.9) 1.33
Bayamón 13 734 (14.3) 3.34
Caguas 12 194 (12.7) 2.33
Humacao 14 838 (15.4) 3.32
Mayagüez 16 686 (17.4) 3.48
Ponce 17 558 (18.3) 4.34
San Juan 15 432 (16.1) 2.56

Abbreviation: NA, not applicable.

a

Percentage of regional population calculated by dividing number of respondents by estimated total population from US Census Bureau data.