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Table 1 Socio-demographic characteristics and pregnancy information of pregnant women related to perceived knowledge change after the intervention

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 DomainNormal Birth Knowledge DomainCesarean Knowledge Domain
CharacteristicsTotalbIncreaseNon-IncreaseChi-square (P-value)IncreaseNon-IncreaseChi-square (P-value)IncreaseNon-IncreaseChi-square (P-value)
N (%)N (%)N (%)N (%)N (%)N (%)N (%)
Age
 19–34 years1043 (81.8)891 (82.2)152 (79.6)0.337727 (83.0)316 (79.2)0.095^669 (82.6)374 (80.4)0.495
  ≥ 35 years232 (18.2)193 (17.8)39 (20.4)149 (17.0)83 (20.8)141 (17.4)91(19.6)
TOTAL12751084 (85.0)191 (15.0)876 (68.7)399 (31.3)810 (63.5)465 (36.5)
Education
  ≤ 12 years398 (31.6)352 (32.8)46 (24.7)0.006*309 (35.9)89 (22.4)0.000**268 (33.4)130 (28.5)0.063^
  > 12 years869 (68.4)720 (67.2)140 (75.3)552 (64.1)308 (77.6)534 (66.6)326 (71.5)
TOTAL12581072 (85.2)186 (14.8)861 (68.4)397 (31.6)802 (63.8)456 (36.2)
Incomea
  < 2 MW282 (23.9)249 (24.7)33 (19.2)0.001**218 (23.9)64 (17.3)0.000**185 (24.7)97 (22.5)0.002*
 2 to < 5 MW380 (32.2)337 (33.5)43 (25.0)279 (32.2)101 (27.3)258 (34.5)122 (28.3)
 5 to < 10 MW293 (24.9)242 (24.0)51 (29.7)193 (24.9)100 (27.0)185 (24.7)108 (25.1)
  ≥ 10 MW224 (19.0)179 (17.8)45 (26.2)119 (19.0)105 (28.4)120 (16.0)104 (24.1)
TOTAL11791007 (85.4)172 (14.6)809 (68.6)370 (31.4)748 (63.6)431 (36.6)
Race
 White587 (45.9)494 (45.4)93 (48.4)0.247385 (43.8)202 (50.4)0.035*-355 (43.6)232 (49.8)0.026*
 Black and Others691 (54.2)594 (54.6)99 (51.6)494 (56.2)199 (49.6)459 (56.4)234 (50.2)
TOTAL12801088 (85.0)192 (15.0)879 (68.7)401 (31.3)814 (63.6)466 (36.4)
First Pregnancy
 Yes593 (50.9)506 (51.3)65 (36.5)0.020*401 (51.0)170 (45.1)0.409390 (53.1)181 (42.1)0.001**
 No571 (49.1)480 (48.7)113 (63.5)386 (49.0)207 (54.9)344 (46.9)249 (57.9)
TOTAL1164986 (84.7)178 (15.3)787 (67.6)377 (32.4)734 (63.1)430 (36.9)
Private Health Insurance
 Yes958 (74.7)810 (74.3)148 (77.1)0.253623 (71.0)335 (82.9)0.000**600 (73.5)358 (76.8)0.155
 No324 (24.3)280 (25.7)44 (22.9)255 (29.0)69 (17.1)216 (26.5)108 (23.2)
TOTAL12821090 (85.0)192 (15.0)878 (68.5)404 (31.5)816 (63.7)466 (36.3)
Prenatal Care Coverage
 SUSc (Public)439 (35.0)374 (35.1)65 (34.8)0.982312 (36.2)127 (32.5)0.202282 (35.2)157 (34.7)0.853
 Private814 (65.0)692 (64.9)112 (65.2)550 (63.8)264 (67.5)519 (64.8)295 (65.3)
TOTAL12531066 (85.1)187 (14.9)862 (68.8)391 (31.2)801 (63.9)452 (36.1)
Pregnancy Trimester at the time of the intervention
 1st or 2nd732 (60.9)637 (62.3)95 (53.1)0.016*519 (63.7)213 (55.0)0.003*497 (65.6)235 (52.9)0.000**
 3rd470 (39.1)386 (37.7)84 (46.9)296 (36.3)174 (45.0)261 (34.4)209 (47.1)
TOTAL12021023 (85.1)179 (14.9)815 (67.8)387 (32.2)758 (63.1)444 (36.9)
  1. aMonthly Minimum Wage in 2015: R$788.00 = U$224.14
  2. bTotal varies because of missing data for each variable
  3. cSUS – Unified Health System
  4. ^P value ≤0.1; *P value ≤0.05; **P value ≤0.001