Hospital facilities ranged from basic health centres with surgical capabilities to tertiary referral centres. PARTICIPANTS: The full dataset included 178 814 surgical cases. ...PRIMARY OUTCOME MEASURE: Volume and nature of surgical workload of different anaesthesia providers. RESULTS: Full routine data were available for 173 084 cases 96.8 : 2518 in ND, 42 225 in AC, 126 936 in HG. ...