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Table 3 Comparisons of the residents’ demographic in relation to awareness rate

From: Knowledge, attitudes, practices and information demand in relation to haze in China: a cross-sectional study

Characteristics   n (%) Awareness rate n (%) χ 2 p-value
Population group College students 267 (30.1) 173 (64.8) 25.347 <0.001
  Occupational population 320 (36.0) 190 (59.4)   
  Traffic police 161 (18.1) 94 (58.4)   
  Elderly population 140 (15.8) 55 (39.3)   
Age, (years) <20 78 (8.8) 47 (60.3) 4.131 0.248
  20–40 371 (41.8) 221 (59.6)   
  40–60 299 (33.7) 173 (57.9)   
  ≥60 140 (15.8) 70 (50.0)   
Sex Male 252 (28.4) 134 (53.2) 2.751 0.097
  Female 636 (71.6) 377 (59.3)   
Level of education ≤High school 117 (13.2) 48 (41.0) 15.052 <0.001
  ≥College 771 (86.8) 463 (60.1)   
Exercise No 83 (9.3) 59 (71.1) 6.87 0.010
  Yes 805 (90.7) 452 (56.1)   
Exercise frequency <3 times a week 582 (72.3) 341 (58.6) 0.289 0.591
  ≥3 times a week 223 (27.7) 126 (56.5)   
Exercise location Indoors 182 (22.6) 106 (58.2) 0.005 0.943
  Outdoors 623 (77.4) 361 (57.9)   
Illness No 582 (65.5) 345 (59.3) 2.077 0.154
  Yes 306 (34.5) 166 (54.2)