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. 2017 Mar 24;41(9):2245–2250. doi: 10.1007/s00268-017-3987-6

Fig. 1.

Fig. 1

Time course probabilities for relapse of appendicitis confirmed at appendectomy in 710 patients who experienced an initial favourable treatment response to antibiotics for their acute appendicitis in randomized (RCT, n = 97) and population-based studies (PBS, n = 342) as well as in non-randomized (Non-R, n = 271) treatments as described in Materials and methods. The slopes for the three patient groups (RCT, PBS, Non-R) were similar (not shown)