Table 4 Prevalence and Concentration Index of ≥ 8 ANC contacts by household wealth quintile and maternal education, BDHS, 2017-18

 Poorest

1.5

5.6

4.4

 Poorer

6.8

2.1

3.0

 Middle

12.5

4.1

6.2

 Richer

5.1

4.4

4.7

 Richest

22.7

20.0

22.2

 Overall

12.9

4.9

8.0

 Concentration Index

0.33

0.16

0.37

 SE

0.07

0.10

0.06

P value^α

< 0.001*

0.087

< 0.001*

 Urban-rural comparison

 z-stat

− 1.46

 CI difference

− 0.17

P value^β

0.143

 No education

9.1

3.7

5.5

 Primary

16.5

8.9

11.9

 Secondary

14.2

3.3

9.1

 Tertiary

50.0

40.0

47.1

 Overall

12.9

4.9

8.0

 Concentration Index

0.18

0.15

0.21

 SE

0.07

0.08

0.05

P value^α

0.006*

0.067

< 0.001*

 Urban-rural comparison

 z-stat

− 0.34

 CI difference

− 0.03

P value^β

0.734