Table 4.
Personal protection under different noise exposure levels - Beijing, 2023.
| Different quantiles | Lower than P5 (n = 14) |
P5~ (n = 57) |
P25~ (n = 72) |
P50~ (n = 71) |
P75~ (n = 43) |
P90~ (n = 29) |
Total (n = 286) |
Ptrend |
|---|---|---|---|---|---|---|---|---|
| Noise exposure level [dB(A)] | Less than 72.55 | 72.55~ | 77.80~ | 80.67~ | 83.11~ | 86.07~ | ||
| Proportion of earplugs provided, % | 92.86 | 96.49 | 98.61 | 100 | 100 | 100 | 98.60 | Z = −2.30, Ptrend = 0.0212 |
| Proportion of earplugs wearing, % | 92.31 | 82.46 | 83.33 | 91.55 | 74.42 | 86.21 | 84.62 | Z = 0.31, Ptrend = 0.7556 |