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Table 1 HIV prevalence among antenatal care attendees who tested for HIV, relative risk and χ2 for trend test across the years by sub-city

From: Promising outcomes of a national programme for the prevention of mother-to-child HIV transmission in Addis Ababa: a retrospective study

Sub-city 2004 2005 2006 2007 2008 2009 χ2trend
  % (n) RR % (n) RR % (n) RR % (n) RR % (n) RR % (n) RR  
Addis Ketema 12.8(195) Ref 11.1(168) 0.99 7.4(170) 0.66 7.8(231) 0.70 4.6(178) 0.41 4.7(130) 0.42 127.3 *
Akaki Kaliti    8.7(99) Ref 7.0(131) 0.81 6.8(16) 0.78 4.9(136) 0.57 5.3(113) 0.61 22.3 *
Arada    8.9(134) Ref 8.2(185) 0.92 6.3(159) 0.71 5.9(298) 0.66 3.8(123) 0.43 64.4 *
Bole 8.6(89) Ref 10.0(112) 1.17 6.8(149) 0.79 5.5(158) 0.64 4.8(171) 0.56 3.2(130) 0.37 105.4*
Gulele    6.7(77) Ref 6.6(118) 0.98 5.7(156) 0.84 5.0(136) 0.75 4.5(93) 0.67 12.1**
Kirkos    10.2(89) Ref 9.5(188) 0.93 7.1(162) 0.69 6.8(191) 0.66 4.6(122) 0.44 54.3 *
Kolfe Keraniyo    5.4(67) Ref 4.9(75) 0.91 2.8(70) 0.51 3.3(73) 0.62 3.7(81) 0.69 7.7
Lideta 9.6(148) Ref 10.2(244) 1.06 6.8(198) 0.71 5.9(228) 0.62 4.8(246) 0.50 4.6(217) 0.48 119.8*
Nifas-silk Lafto    8.0(175) Ref 7.5(253) 0.93 6.0(232) 0.74 4.6(217) 0.57 4.0(140) 0.49 70.5*
Yeka    7.9(161) Ref 7.6(228) 0.96 8.2(206) 1.03 9.3(268) 1.17 9.2(193) 1.17 6.2
  1. Ref = Reference *P < 0.0001 **P < 0,001 ‡P < 0,01 ‡ ‡ P < 0,05 NB: The denominator for each cell is different