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Table 2 Analysis of annual trends in intestinal schistosomiasis cases in zone in Burundi that was targeted for MDA with PZQ (ZI) and zone that was not (ZNI)

From: Can direct smear results that are routinely collected at health centre level be used for monitoring the impact of mass drug administration with praziquantel on schistosomiasis in Burundi? A preliminary assessment

YearZoneSD (N)nβ95% CIP-value
2011ZI1134041
 ZNI348761
2012ZI112607− 0.563− 1.180–0.0540.074
 ZNI34856− 0.157− 0.757–0.4430.607
2013ZI112384− 0.521− 1.140–0.0970.098
 ZNI34848− 0.324− 0.940–0.2920.302
2014ZI111581− 0.826− 1.454–− 0.1980.010*
 ZNI34978− 0.055− 0.663–0.5530.859
2015ZI111054− 1.294− 1.908–− 0.680< 0.001*
 ZNI34689− 0.508− 1.121–0.1050.104
2011–2015ZI11− 0.286− 0.429–− 0.144< 0.001*
 ZNI34− 0.087− 0.227–0.0520.219
  1. Abbreviations: CI, confidence interval; SD, sanitary district; n, number of cases of intestinal schistosomiasis; N, number of sanitary districts; ZI, zone of intervention, targeted for MDA with PZQ; ZNI, zone of non-intervention, not targeted for MDA with PZQ
  2. *P < 0.05