Table 2 Descriptive statistics for hearing protection knowledge, attitudes, and comfort of HPDs wearing
| Â | \( \bar x \pm s \) | N (%) | Â | \( \bar x \pm s \) | N (%) | Â | \( \bar x \pm s \) | N (%) | Â | \( \bar x \pm s \) | N (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
K1 | 0.40 ± 0.491 | 211(40.3) | A1 | 4.47 ± 0.658 | 502(95.8) | P1 | 3.62 ± 0.919 | 315(60.1) | F1 | 3.94 ± 0.814 | 407(77.7) |
K2 | 0.64 ± 0.481 | 335(63.9) | A2 | 4.52 ± 0.641 | 507(96.7) | P2 | 3.35 ± 0.980 | 234(44.7) | F2 | 3.37 ± 0.745 | 337(64.4) |
K3 | 0.16 ± 0.371 | 86(16.4) | A3 | 4.28 ± 0.738 | 485(92.6) | P3 | 3.34 ± 0.991 | 237(45.2) | F3 | 3.85 ± 0.858 | 354(67.5) |
K4 | 0.09 ± 0.283 | 46(8.8) | A4 | 4.29 ± 0.728 | 480(91.6) | P4 | 3.48 ± 0.928 | 280(53.4) | F4 | 4.05 ± 0.816 | 378(72.1) |
K5 | 0.90 ± 0.304 | 470(89.7) | A5 | 4.50 ± 0.595 | 512(97.7) | P5 | 3.54 ± 1.014 | 293(55.9) | F5 | 3.81 ± 0.779 | 359(68.5) |
K6 | 0.59 ± 0.493 | 308(58.8) | A6 | 4.11 ± 0.872 | 438(83.6) | P6 | 3.57 ± 0.907 | 261(49.8) | F6 | 3.72 ± 0.676 | 330(63.0) |
K7 | 0.76 ± 0.429 | 397(75.8) |  |  |  | P7 | 2.84 ± 0.957 | 135(25.8) | F7 | 3.45 ± 0.668 | 237(45.3) |
|  |  |  |  |  |  | P8 | 3.18 ± 0.828 | 181(34.5) | F8 | 3.59 ± 0.902 | 306(58.0) |
|  |  |  |  |  |  | P9 | 3.04 ± 0.615 | 379(72.3) |  |  |  |
K | 3.54 ± 1.552 | 50.6% | A | 26.17 ± 2.958 | 87.2% | P | 29.98 ± 5.601 | 66.6% | F | 30.15 ± 4.336 | 75.4% |