Table 5

Labour protection of migrant workers with pneumoconiosis compared with state-owned enterprise workers with pneumoconiosis, and state-owned enterprise workers and migrant workers with non-pulmonary occupational diseases

Variables
N (%)
Migrant workers with pneumoconiosis n=198State-owned enterprise workers with pneumoconiosis n=205Migrant workers with non-pulmonary occupational diseases n=198
Method of operation
 Wet26 (13.13)53 (25.85)*29 (14.65)
 Dry172 (86.87)152 (74.15)169 (85.35)
Average daily working hours
 ≤8 100 (50.51)159 (77.56)*137 (69.19)†
 >898 (49.49)46 (22.44)61 (30.81)
Mode of operation
 Mechanisation108 (54.55)146 (71.22)*157 (79.29)†
 Non-mechanical90 (45.45)59 (28.78)41 (20.71)
Ventilation
 Both8 (4.04)24 (11.71)*79 (39.90)†
 Natural74 (37.37)55 (26.83)*61 (30.81)
 Mechanical63 (31.82)91 (44.39)*47 (23.74)
 None53 (26.77)35 (17.07)*11 (5.56)†
Use of dust protection
 Yes116 (58.59)151 (73.66)*128 (64.65)
 No82 (41.41)54 (26.34)70 (35.35)
Rules and regulations
 Unclear17 (8.59)34 (16.59)*62 (31.31)†
 Yes19 (9.60)107 (52.20)*63 (31.82)†
 No162 (81.82)64 (31.22)*73 (36.87)†
Pre-employment medical examination
 Yes63 (31.82)183 (88.27)*170 (85.86)†
 No135 (68.18)22 (10.73)28 (14.14)
Medical examination during in-service
 Yes64 (32.32)188 (91.71)*174 (87.88)†
 No134 (67.68)17 (8.29)24 (12.12)
Post-employment medical examinations
 Yes39 (19.70)153 (74.63)*174 (87.88)†
 No159 (80.30)52 (25.37)24 (12.12)
Occupational health education
 Unclear4 (2.02)9 (4.39)*14 (7.07)†
 Yes29 (14.65)164 (80.00)*101 (51.01)†
 No165 (83.33)32 (15.61)*83 (41.92)†
Dust detection
 Unclear25 (12.69)69 (33.66)*50 (25.25)†
 Yes19 (9.64)75 (36.59)*50 (25.25)†
 No153 (77.66)61 (29.76)*98 (49.49)†
  • *Migrant workers with pneumoconiosis versus state-owned enterprise workers: p<0.05/n, where n is the total number of Bonferroni correction tests.

  • †Migrant workers with pneumoconiosis versus migrant workers with non-pulmonary occupational disease: p<0.05/n, where n is the total number of Bonferroni correction tests.