purposive yosdimyati surgery analysi obtained data SURGICAL while even 000 very sampling sufficient cros researched carried case death studied occur observational INCIDENT safety association medika abstract implemented design caused aim method PATIENT analyze minimal poorly ASSOCIATION romli surgical OF finding analytic checklist showed unwanted STIKES sayidiman number several sample respondent sectional SAFETY quantitative population disability variable leo using jombang insan chi failure java room value square east instrument indonesia used patient show good statistical significant well incident regarding research result there wa could magetan cendekia operating implementation keyword out mostly perform all