Table 1 A description of the study population (n = 2150)
Characteristic | Number | Percent |
|---|---|---|
Gender | ||
Male | 1027 | 47.8 |
Female | 1121 | 52.2 |
Grade | ||
9th grade | 738 | 34.3 |
10th grade | 561 | 26.1 |
11th grade | 459 | 21.3 |
12th grade | 392 | 18.2 |
Type of high school | ||
Normal high school | 558 | 26.0 |
Anatolian high school | 494 | 23.0 |
Industrial vocational high school | 489 | 22.7 |
Trade vocational high school | 285 | 13.3 |
Girls’ technical high school | 212 | 9.9 |
Private high school | 76 | 3.5 |
Science high school | 36 | 1.7 |
Monthly income per capita (n = 1539) | ||
Below the starvation line (<137 USD) | 467 | 30.3 |
Between the starvation and poverty lines (137–347 USD) | 742 | 48.2 |
Above the poverty line (>347 USD) | 330 | 21.4 |
Mother’s education | ||
Primary school or less (≤5 years) | 1025 | 47.9 |
Middle or high school (6–12 years) | 788 | 36.8 |
University | 328 | 15.3 |
Father’s education | ||
Primary school or less (≤5 years) | 659 | 30.8 |
Middle or high school (6–12 years) | 1015 | 47.4 |
University | 466 | 21.8 |
Presence of a base station nearby | ||
No, none nearby | 392 | 18.7 |
Yes, close to home | 303 | 14.5 |
Yes, close to school | 150 | 7.2 |
Yes, close to both home and school | 79 | 3.8 |
Does not know | 1171 | 55.9 |
Distance to base station (n = 924) | ||
None nearby or >300 m | 496 | 53.7 |
≤ 300 m | 428 | 46.3 |
School building RF quartiles | ||
1st quartile (≤0.602 V/m) | 657 | 30.6 |
2nd quartile (0.603–0.850 V/m) | 521 | 24.2 |
3rd quartile (0.851–1.51 V/m) | 438 | 20.4 |
4th quartile (≥1.52 V/m) | 534 | 24.8 |