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Fig. 4 | BMC Surgery

Fig. 4

From: Increasing rates of laparoscopic gastrointestinal surgery and decreasing rates of surgical site infections: an observational study in Japan from 2012–2017

Fig. 4

Trends in the relative risk of SSI following open vs laparoscopic surgery among the medical institutions registered in JANIS, 2012–2017. Panels are shown separately for A esophagectomy, B gastrectomy, C total gastrectomy, D distal gastrectomy, E colon surgery, and F rectal surgery. The relative risk of surgical site infections following open surgery as the exposed group (numerator) compared with that following laparoscopic surgery as the unexposed group (denominator) was calculated. The solid circles represent the estimate, and the associated error bars (whiskers) indicate the 95% confidence intervals. SSI surgical site infection, JANIS Japan Nosocomial Infections Surveillance

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