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Table 3 Logistic regression testing associations between socio-demographic and pregnancy information with odds of increasing perceived knowledge

From: Changes in perceived knowledge about childbirth among pregnant women participating in the Senses of Birth intervention in Brazil: a cross-sectional study

 EBP Knowledge Domainc, dNormal Birth Knowledge Domainc, eCesarean Knowledge Domainc, f
TotalbN = 944TotalbN = 944TotalbN = 944
CharacteristicsORCI 95% ORCI 95% ORCI 95% 
Wald (P-value)Wald (P-value)Wald (P-value)
Age
 19–34 years0.8950.564–1.4190.223 (0.636) **1.0290.720–1.4670.023 (0.879) **0.9250.653–1.3110.191 (0.662) **
  ≥ 35 years1.00  1.00  1.00  
Education
  ≤ 12 years1.4540.818–2.5851.624 (0.202) **1.4900.969–2.2923.302 (0.069)^ *1.3590.911–2.0272.254 (0.133)^ *
  > 12 years1.00  1.00  1.00  
Incomea
  < 2 MW1.8880.865–4.1122.546 (0.111)^ *2.6881.488–4.85410.745 (0.001)**1.4990.864–.6032.073 (0.150) ** **
 2 to < 5 MW1.6870.966–2.9463.377 (0.066)^ *2.2991.504–3.51514.765 (0.000)**1.7571.161–2.6607.115 (0.008)* * *
 5 to < 10 MW1.1340.696–1.8490.254 (0.614) **1.5711.063–2.3205.147 (0.023)* *1.4891.008–2.2004.001 (0.045)* * *
  ≥ 10 MW1.00  1.00  1.00  
Race
 Black and Others1.0990.747–1.6170.229 (0.633) **0.9400.698–1.2670.165 (0.685) **1.1920.895–1.5961.401 (0.230) **
 White1.00  1.00  1.00  
First Pregnancy
 Yes1.9241.312–2.82111.218 (0.001)**1.3741.028–1.8374.618 (0.032)* *1.6321.234–2.15811.784 (0.001)**
 No1.00  1.00  1.00  
Private Health Insurance
 No1.2560.650–2.4270.460 (0.498) **2.4721.493–4.09412.372 (0.000)**1.3030.818–2.0761.245 (0.264) **
 Yes1.00  1.00  1.00  
Prenatal Care Coverage
 Private1.3440.793–2.2781.205 (0.272) **2.4151.594–3.65817.326 (0.000)**1.5071.013–2.2414.097 (0.043)* *
 SUS (Public)1.00  1.00  1.00  
Pregnancy Trimester at the time of the intervention
 1st or 2nd1.6431.131–2.3856.809 (0.009)* *1.4771.106–1.9736.987 (0.008)* *1.8531.403–2.40618.916 (0.000)**
 3rd1.00  1.00  1.00  
  1. aMonthly Minimum Wage in 2015: R$788.00 = U$224.14
  2. bTotal varies because of missing data – Method of Listwise deletion
  3. cReference category: Impact on knowledge (yes)
  4. dHosmer and Lemeshow Test X2 = 8.451; df = 8; P-value = 0.391. R2 de Nagelkerke = 0,056
  5. eHosmer and Lemeshow Test X2 = 8.913; df = 8; P-value = 0.350. R2 de Nagelkerke = 0,099
  6. fHosmer and Lemeshow Test X2 = 11.056; df = 8; P-value = 0.198. R2 de Nagelkerke = 0,067
  7. ^P value ≤0.1; *P value ≤0.05; **P value ≤0.001