Research Article
Improved HFACS on Human Factors of Construction Accidents: A China Perspective
Table 7
Significant chi-square test of associations and associated values of OR for the analysis of the same-level subcategories in the I-HFACS framework (
).
| | Significant association between the same-level subcategories in the I-HFACS framework | χ2 test | Fisher’s exact test | OR value | | χ2 value | value | Theoretical frequency (expected count < 5) | value |
| | I-HFACS level 5 subcategories | | Regulatory factors × economic/political/social/legal environment | 4.333 | 0.037 | 25% | — | 6.859 |
| | I-HFACS level 4 subcategories | | Safety culture × resource management | 6.191 | 0.039 | 0 | — | 2.043 |
| | I-HFACS level 3 subcategories | | Inadequate design work × on-site management defects | 6.635 | 0.010 | 50% | 0.009 | 1.107 | | Inadequate design work × supervisory violations | 3.97 | 0.046 | 0 | — | 1.991 |
| | I-HFACS level 2 subcategories | | Adverse physiological states × physical environment | 4.919 | 0.006 | 25% | — | 4.098 | | Adverse spiritual states × skill underutilization | 15.092 | 0.001 | 0 | — | 4.145 |
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All tests have 1 degree of freedom. All other comparisons were nonsignificant.
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