本研究蒐集民國85-94年間發生被夾、被捲的287件重大職災個案報告(其中包含24個外勞個案)，擷取性別、年齡、工作經驗、危害類型、公司規模、行業別、作業別、發生原因、夾捲部位及媒介物等因素進行編碼，以及利用Cramer’s V統計量來找出影響因素間的相關性，再進一步以Phi係數找出種不同因素間的關聯性。為了能完整找出發生過程的關鍵情境，所以藉由作業別與發生原因的Phi分析表所呈現之顯著相關發生原因來探討災害發生過程。
經由Phi分析得知因進行排除雜物作業造成夾捲的關鍵原因有未使機械停止運轉、缺乏護罩或護圍與缺乏緊急制動裝置。維修保養作業的關鍵原因有違反安全工作程序、其它不安全機具設備、未使機械停止運轉、故障的設備與缺乏標準工作程序。物料搬運作業的關鍵原因有不安全位置、缺乏護罩或護圍、擅自操作機械器具、地面濕滑不平或斜坡、重心不穩或打滑與昏暗或空間狹小或噪音。設置/調整作業的關鍵原因有未使機械停止運轉、缺乏緊急制動裝置。送/引料或打黃油作業造成夾捲的關鍵原因有缺乏護罩或護圍、缺乏緊急制動裝置與地面濕滑不平或斜坡。檢查/視察作業造成夾捲的關鍵原因有不安全位置、同事引發事故的行為、不安全動作與缺乏護罩或護圍。一般操作的關鍵原因有衣著不當、未使機械停止運轉、其它不安全行為、不安全位置、故障的設備。駕駛作業的關鍵原因有不安全動作、違反安全工作程序、地面濕滑不平斜坡、未使機械停止運轉與不安全位置。因為操作手工具造成夾捲的關鍵原因有違反安全工作程序、缺乏標準工作程序、操作模式不當、同事引發事故的行為、不安全位置、其它不安全機具設備。搭乘作業造成夾捲的關鍵原因有不安全動作、違反安全工作程序、缺乏安全連鎖裝置、設計不良、其它不安全管理、同事引發事故的行為。安裝機械作業造成夾捲的關鍵原因有未使機械停止運轉、缺乏護罩或護圍、不安全動作、缺乏標準工作程序、同事引發事故的行為、缺乏緊急制動裝置與昏暗或空間狹小或噪音。配管作業的關鍵原因有未使機械停止運轉、不安全位置、違反安全工作程序、同事引發事故的行為與其它不安全管理。最後探討各主要作業類型有關的發生原因及對應的媒介物，列舉出所應遵守之相關勞工安全衛生法規與建議事項以及製造業、營造業預防策略。

Each year, there were about 4,340 caught in between and compressed disabling injuries in Taiwan. Caught in between disabling injuries accounted for 14.4% of all disabling injuries and were the second leading cause of occupational injuries in Taiwan, following traffic injuries. The current study analyzed 287 caught in between injuries between 1996-2005. Similar to our previous analysis of fatal falls, each fatality was analyzed in terms of individual factors (age, gender, experience of the victim), task factors (performing task), environmental factors (wet area and confined space), management factors (company size measured by number of workers), source of injury, and causes for these accidents. These caught in between accidents of each performing task was analyzed by the associated causes and source of injuries.
Caught in between injuries of clearing shavings were caused by servicing equipment in operation, lack of fix guards, lack of Emergency Brake; caught in between injuries of maintenance were caused by unsafe work practice, unsafe machinery or equipment, servicing equipment in operation, unusual condition of work equipment, lack of Standard Operation Procedure; material handling were caused by taking unsafe position, lack of fix guards, operating equipment without authority, wet or slippery or unstable work surface, loss of balance and slipper, poor light or the space confined or noise; prepping/adjusting machine were caused by servicing equipment in operation, lack of Emergency Brake; send and guide material were caused by lack of fix guards, lack of Emergency Brake, wet or slippery or unstable work surface; inspection were caused by taking unsafe position, co-worker behavior, taking unsafe acts, lack of fix guards; routine operations were caused by unsafe clothing, servicing equipment in operation, unsafe behavior, taking unsafe position, unusual condition of work equipment. Driving were caused by taking unsafe acts, unsafe work practice, wet or slippery or unstable work surface, servicing equipment in operation, taking unsafe position; operating hand tools were caused by unsafe work practice, lack of Standard Operation Procedure, mode failure, co-worker behavior, taking unsafe position, unsafe machinery or equipment; taking elevator or vehicles were caused by taking unsafe acts, unsafe work practice, lack of interlocked, defective design, unsafe management, co-worker behavior; installing machine were caused by servicing equipment in operation, lack of fixed guards, taking unsafe acts, lack of Standard Operation Procedure, co-worker behavior, lack of Emergency Brake, poor light or the space confined or noise; plumbing were caused by servicing equipment in operation, taking unsafe position, unsafe work practice, co-worker behavior, unsafe management. More precise and effective intervention can be developed based on the associated accident causes and source of injury.

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