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Table 6 Probability of finding a tracer medicine in a public sector sample outlet, by rural and urban location and manufacturing origin, 2006 (40 medicines)

From: Local production of pharmaceuticals in Africa and access to essential medicines: 'urban bias’ in access to imported medicines in Tanzania and its policy implications

Location All medicines Tanzanian medicines Kenyan medicines Other medicines
Rural 0.34 (0.011) 0.206 (0.016) 0.005 (0.003) 0.12 (0.013)
Sample size = 640         
Urban         
Sample size = 600 0.59 (0.011) 0.252 (0.017) 0.038 (0.008) 0.29 (0.018)
Difference -0.25 (0.0159) -0.045 (0.024) -0.034 (0.008) -0.17 (0.022)
z-test -8.9 -1.90 -4.13 -7.53
H0: Prural = Purban Pr(|Z| < |z|) = 0.0000 Pr(|Z| < |z|) = 0.057 Pr(|Z| < |z|) = 0.000 Pr(|Z| < |z|) = 0.0000
Ha : Prural ≠ Purban Null hypothesis is rejected Null hypothesis is accepted Null hypothesis is rejected Null hypothesis is rejected
  1. Note: sampling error in brackets (in italics).