From: Cement dust exposure and acute lung function: A cross shift study
Acute respiratory Symptoms, n (%) | Departments | Exposed groups | Significance levels (p) | |||
---|---|---|---|---|---|---|
Crusher (n = 20) | Packing (n = 20) | High exposed (n = 40) | Low exposed (n = 20) | High exposeda vs Low exposed | Crusher vs Pacing | |
Cough | 4(20) | 8(40) | 12(30) | 2(10) | 0.112b | 0.168c |
Wheezing | 6(30) | 8(40) | 14(35) | 0(0) | 0.002b | 0.507c |
Shortness of breath | 9(45) | 10(50) | 19(47) | 1(5) | 0.001b | 0.752c |
Stuffy nose | 19(95) | 15(75) | 34(85) | 0(0) | < 0.0005b | 0.077c |
Sneezing | 9(45) | 9(45) | 18(45) | 1(5) | 0.002b | 1.000c |
Runny nose | 4(20) | 6(30) | 10(25) | 0(0) | 0.023b | 0.465c |
Peak expiratory | ||||||
Flow, AM (SD) | (n = 10) | |||||
Preshift PEF (l/m) | 455(84.9) | 505(65.2) | 480(78.9) | 429(83.2) | 0.024d | 0.043d |
Postshift PEF (l/m) | 437(94.3) | 483(67.6) | 459(84.2) | 455(84) | 0.85d | 0.087d |
ΔPEF% | -4.2(8.9) | -4(10.5) | -4.1(9.6) | 6.8(10.7) | < 0.0005d | 0.949d |