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Table 4 ANC performance: results of bivariate and multivariate analyses of percentage of ANC verification criteria achieved during ANC consultations, by data collection round and study condition

From: Evaluation of a quality improvement intervention to prevent mother-to-child transmission of HIV (PMTCT) at Zambia defence force facilities

  Bivariate analysis Multivariate analysis a
  % achieved at: Change from baseline to endline within group Adjusted p-value for change within group p-value for interaction
ANC performance standard and study condition Baseline (n=191) Endline (n=196) % points p-value   
ANC supplies and equipment      
  Comparison 73.2 69.7 -3.5 0.004 0.626 0.135
  Intervention 77.8 87.4 +9.6 0.001 0.001
Interpersonal communication    
  Comparison 98.4 86.7 -11.7 0.001 0.073 0.936
  Intervention 97.7 85.1 -12.6 0.001 0.027  
History taking       
  Comparison 48.1 51.1 +3.0 0.328 0.797 0.797
  Intervention 50.0 56.7 +6.7 0.032 0.352
Physical exam       
  Comparison 72.5 59.4 -13.1 0.001 0.414 0.559
  Intervention 82.6 79.1 -3.5 0.095 0.584
Obstetric examination       
  Comparison 60.0 49.5 -10.5 0.001 0.121 0.239
  Intervention 54.8 54.9 +0.1 0.967 0.654
Individualized care       
  Comparison 58.9 52.6 -6.3 0.032 0.719 0.244
  Intervention 60.8 79.7 +18.9 0.001 0.004
Follow-up       
  Comparison 80.3 55.7 -24.6 0.001 0.208 0.123
  Intervention 79.0 86.1 +7.1 0.002 0.173
Syphilis management       
  Comparison 13.6 5.8 -7.8 0.124 0.010 0.114
  Intervention 16.2 9.2 -7.0 0.203 0.234
Overall ANC score       
  Comparison 65.4 58.8 -6.6 0.001 0.583 0.307
  Intervention 67.2 74.1 +6.9 0.001 0.084  
  1. a Results from generalized linear regression with Poisson distribution adjusted for ZDF branch and clustering within a facility.