Respiratory effects due to occupational exposure to formaldehyde: Systematic review with meta-analysis.

The observed FVC and FEV1 in controls [ Table 3 ] from European descent[ 12 20 21 32 37 ] were found to higher compared to studies from Asia countries.[ 17 38 ] The differences are quite significant which may be because climatic conditions[ 40 ] and nutritional and genetic factors[ 41 ] contribute to increased lung and chest cage size.

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