Skip to main content

Advertisement

Table 4 Results of Wilcoxon rank-sum test: median MPR for innovator brand medicines and generic medicines

From: A survey of availability, price and affordability of essential medicines from 2011 to 2016 in Chinese secondary and tertiary hospitals

Year Innovator brand medicines (n = 16) Generic medicines (n = 16) MPRIB P
MPR Product specific ΔMPR MPR Product specific ΔMPR MPRG
2011 29.51   8.06   3.66 0.000
2012 33.07 2.11 8.28 −0.02 3.99 0.000
2013 37.20 2.15 7.18 0.12 5.18 0.000
2014 36.57 −0.80* 7.05 −0.14* 5.19 0.000
2015 28.07 −0.85* 5.77 −0.16* 4.86 0.002
2016 34.76 −0.85 5.50 −0.08 6.32 0.000
  1. *P < 0.05
  2. MPRIB MPR of innovator brand medicines, MPRG MPR of generic medicines
  3. Product specific Δ MPR: first calculated the differences of MPR of each product between adjacent years and then chose the median value of these differences as Product specific Δ MPR