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)

2011

ZI

11

3404

1

–

–

ZNI

34

876

1

–

–

2012

ZI

11

2607

− 0.563

− 1.180–0.054

0.074

ZNI

34

856

− 0.157

− 0.757–0.443

0.607

2013

ZI

11

2384

− 0.521

− 1.140–0.097

0.098

ZNI

34

848

− 0.324

− 0.940–0.292

0.302

2014

ZI

11

1581

− 0.826

− 1.454–− 0.198

0.010*

ZNI

34

978

− 0.055

− 0.663–0.553

0.859

2015

ZI

11

1054

− 1.294

− 1.908–− 0.680

< 0.001*

ZNI

34

689

− 0.508

− 1.121–0.105

0.104

2011–2015

ZI

11

–

− 0.286

− 0.429–− 0.144

< 0.001*

ZNI

34

–

− 0.087

− 0.227–0.052

0.219