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Table 4 Decomposition changes in HIV testing among women aged 15–24 in the 2003–2004 THIS and the 2007–2008 and 2011–2012 THMISs

From: Factors associated with changes in uptake of HIV testing among young women (aged 15–24) in Tanzania from 2003 to 2012

HIV testing   Due to differences in characteristics (E) Due to differences in coefficients (C)
Coefficient Percent Coefficient Percent
Age (years) 15–19 1.0   1.0  
20–24 −0.0001 −0.0288 0.0067 2.7657
Residence Urban 1.0   1.0  
Rural −0.0089*** −3.6661 0.0461** 19.0522
Region (zone) South West Highlands 1.0   1.0  
Central −0.0024* −0.9758 0.0002 0.8422
Lake 0.0013 0.5495 −0.0014 −0.5948
Northern −0.0057*** −0.0035 0.0015 0.6041
Eastern −0.0064** −2.6346 0.0033 2.1948
Western 0.0079*** 3.2746 0.0049 2.009
Southern Highlands −0.0005*** −0.2239 0.0084 3.4742
Southern −0.0005 0.2094 0.0092 3.8014
Education level No education 1.0   1.0  
Primary −0.001*** −0.4253 −0.0137 −5.6564
Secondary and above 0.0003*** 0.1225 0.0003 −0.1093
Marital status Never married 1.0   1.0  
Ever married 0.0001** 0.0197 −0.0042 −1.7221
Employment status
  Not employed 1.0   1.0  
  Employed −0.0006 −0.2258 0.0092 3.8152
Number of sexual partners over lifetime 0 1.0   1.0  
1 0.0001*** 0.0481 0.0156 6.4606
2 0.0052 *** 2.1621 0.0121 5.0033
3+ −0.0091 *** −3.7754 0.0170 7.0277
Blood test result HIV-negative 1.0   1.0  
HIV-positive 0.0004 0.0145 0.0012 0.4751
Had STI in last 12 months
  No 1.0   1.0  
  Yes 0.0001 0.0205 −0.0022 −0.8932
Giving birth and receiving ANC <2 years preceding the survey
  No birth 1.0   1.0  
  Birth and ANC 0.0009*** 0.3740 0.0793*** 32.7662
  Birth but no ANC −0.0002 −0.0955 0.0001 0.0449
Constant     0.0597*** 24.6542
Total    −5.2563**   105.2624***
  1. * Significant at P < 0.05; ** Significant at P < 0.01; *** Significant at P < 0.001