Table 1 Demographic characteristics of the interviewees (n = 1604)
From: Knowledge and perceptions of air pollution in Ningbo, China
Characteristics | Frequency (n) | Percentage (%) | Frequency of awareness (n) | Awareness rate (%) | χ 2 | P value |
|---|---|---|---|---|---|---|
Districts | ||||||
Jiangbei Districts | 852 | 53.11 | 599 | 70.31 | 25.96 | <0.0001 |
Ninghai County | 752 | 46.89 | 437 | 58.11 | ||
Gender | ||||||
Male | 651 | 40.59 | 413 | 63.44 | 0.63 | 0.4270 |
Female | 953 | 59.41 | 623 | 65.37 | ||
Age (years) | ||||||
14- | 478 | 29.80 | 362 | 75.73 | 111.33 | <.0001 |
30- | 411 | 25.62 | 297 | 72.26 | ||
40- | 249 | 15.52 | 165 | 66.27 | ||
50- | 271 | 16.90 | 121 | 44.65 | ||
≥ 60 | 195 | 12.16 | 91 | 46.67 | ||
Education | ||||||
≥ College | 755 | 47.07 | 561 | 74.30 | 100.78 | <.0001 |
High school | 355 | 22.13 | 242 | 68.17 | ||
Junior high school | 313 | 19.51 | 155 | 49.52 | ||
≤ Elementary school | 181 | 11.28 | 78 | 43.09 | ||
Occupation | ||||||
Manual worker | 141 | 8.79 | 78 | 55.32 | 128.72 | <.0001 |
Homemaker and retired | 350 | 21.82 | 147 | 42.00 | ||
Student | 182 | 11.35 | 149 | 81.87 | ||
Cadre and technician | 583 | 36.35 | 426 | 73.07 | ||
Service | 287 | 17.89 | 199 | 69.34 | ||
Unemployed | 61 | 3.80 | 37 | 60.66 | ||