## 3 Results
### Regional Distribution of Construction Accidents
#### 3.3.2 Construction Safety Performance Evaluation
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Region**} & \multirow{2}{*}{**Accident**} & \multirow{2}{*}{**Worker**} & \multirow{2}{*}{**Construction**} & \multirow{2}{*}{**Death Rate/**} & \multirow{2}{*}{**Death Rate/**} & \multirow{2}{*}{**Death Rate/**} & \multirow{2}{*}{**MHF**} \\  & & & **GDP/** & & **1,000,000** & & **100 Million** & **100,000** & **Accident** \\  & & & **100 Million Yuan** & **m\({}^{2}\)** & & **Yuan** & **Employees** & **Rate (\%)** \\ \hline Beijing & 178 & 212 & 63,348.59 & 0.04 & 0.003 & 5.22 & 2.81 \\ Tianjin & 121 & 135 & 29,896.04 & 0.10 & 0.005 & 3.37 & 2.48 \\ Hebei & 85 & 120 & 40,455.19 & 0.03 & 0.003 & 1.20 & 10.59 \\ Shanxi & 55 & 83 & 24,245.96 & 0.05 & 0.003 & 1.49 & 9.09 \\ Inner & 113 & 151 & 9869.41 & 0.16 & 0.015 & 5.81 & 8.85 \\ Mongolia & 111 & 158 & 42,773.41 & 0.04 & 0.004 & 1.42 & 10.81 \\ Jilin & 159 & 188 & 16,514.94 & 0.17 & 0.011 & 4.99 & 3.77 \\ Heilongjiang & 184 & 209 & 14,186.72 & 0.31 & 0.047 & 6.32 & 3.26 \\ Shanghai & 249 & 273 & 43,339.15 & 0.08 & 0.006 & 3.89 & 2.41 \\ Jiangsu & 590 & 660 & 182,534.48 & 0.03 & 0.004 & 1.13 & 2.71 \\ Zhejiang & 335 & 372 & 174,241.97 & 0.02 & 0.002 & 0.66 & 1.19 \\ Anhui & 258 & 306 & 43,196.30 & 0.08 & 0.007 & 2.30 & 3.10 \\ Fujian & 160 & 182 & 56,282.13 & 0.03 & 0.003 & 0.81 & 3.13 \\ Jiangxi & 157 & 192 & 34,527.97 & 0.07 & 0.006 & 1.83 & 5.10 \\ Shandong & 131 & 186 & 72,807.82 & 0.02 & 0.003 & 0.80 & 9.92 \\ Henan & 126 & 178 & 62,468.14 & 0.03 & 0.003 & 0.90 & 9.52 \\ Hubei & 204 & 257 & 79,593.16 & 0.04 & 0.004 & 1.60 & 6.37 \\ Hunan & 151 & 180 & 50,221.89 & 0.04 & 0.004 & 1.23 & 3.97 \\ Guangdong & 308 & 372 & 67,939.10 & 0.07 & 0.006 & 2.21 & 5.52 \\ Guangxi & 189 & 209 & 23,095.61 & 0.11 & 0.009 & 2.80 & 3.70 \\ Hainan & 73 & 79 & 2266.13 & 0.38 & 0.035 & 13.41 & 1.37 \\ Chongqing & 307 & 323 & 44,896.36 & 0.12 & 0.007 & 2.25 & 1.30 \\ Sichuan & 175 & 214 & 67,523.55 & 0.04 & 0.003 & 0.97 & 6.86 \\ Guizhou & 138 & 186 & 15,156.00 & 0.12 & 0.002 & 4.28 & 7.97 \\ Yunnan & 209 & 241 & 26,707.86 & 0.16 & 0.009 & 3.05 & 2.87 \\ Tibet & 8 & 16 & 891.80 & 0.32 & 0.018 & 5.84 & 12.50 \\ Shaanxi & 60 & 79 & 38,106.77 & 0.03 & 0.002 & 0.89 & 10.00 \\ Gansu & 136 & 155 & 12,865.92 & 0.17 & 0.012 & 3.60 & 2.21 \\ Qinghai & 88 & 102 & 3055.06 & 1.09 & 0.033 & 12.09 & 4.55 \\ Ningxia & 50 & 66 & 4070.99 & 0.17 & 0.016 & 7.75 & 8.00 \\ Xinjiang & 147 & 169 & 15,749.77 & 0.15 & 0.011 & 6.13 & 5.44 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Construction accident indices in 31 Regions. Table 3 shows that Qinghai Province ranked first in construction accidents in the period from 2010 to 2018. Thus, in this paper, construction practices in this province are elaborated upon. The construction industry in this province mostly involved residential and infrastructure construction. The annual _China Building Industry Yearbook_ (for example, [40]) suggested that affordable housing under construction increased steadily every year during the period from 2010 to 2016. Approximately 55% of accidents happened in this building category involving local construction companies. Geographically, Qinghai Province is located in a higher-elevation region with lower oxygen levels and lower temperatures. Such conditions may have an influence on the performance of labor and equipment. Specifically, the altitude stress may have affected the physical and mental state of workers and thus decreased productivity. In these conditions, the likelihood of accidents is increased [41; 42]. Additionally, the capacity and productivity of engine/equipment is decreased at high altitudes because of inadequate combustion [43]. Lack of management and technical skills are also important issues for Qinghai Province. For example, the _China Building Industry Yearbook_ reported that there were 144,900 employees in Qinghai Province in 2016, but only 16,500 (11.4%) possessed technician skill level [40]. Qinghai is an underdeveloped province where transportation is often an issue because of high altitude.