From: Using WeChat official accounts to improve malaria health literacy among Chinese expatriates in Niger: an intervention study
2013
χ2
p
2014
χ2*
p*
χ2#
p #
Intervention, NÂ =Â 721
Control, NÂ =Â 720
152
159
0.213
0.644
111
142
4.660
0.018
7.817
0.03
1.214
0.150