Table 2 Factors associated with antenatal care visit on-time

Personal characteristics

Nationality

   Thai

1

   Non-Thai

0.79

(0.60-1.04)

Education

   No Education

1

   Primary Education

1.23

(0.85-1.75)

   Above Primary Education

1.12

(0.69-1.81)

Age Group

   < 18 years

1

   18-20 years

0.70

(0.37-1.31)

   21-25 years

0.71

(0.40-1.28)

   26-30 years

0.51

(0.29-0.94)

   > 30 years

0.62

(0.35-1.11)

Parity

   1

1

   2

1.00

(0.69-1.43)

   3

0.88

(0.60-1.28)

   4 or more

1.06

(0.74-1.51)

Application of MCCM

Follow-up cases on cell phone

   No

1

1

   Yes

1.04

(0.55-1.96)

0.99

(0.52-1.88)

Send appointment messages

   No

1

1

   Yes

3.07

(1.69-5.58)

2.97

(1.60-5.54)

Year

   2008 - Before MCCM implementation

1

1

   2009 - After MCCM implementation

1.83

(1.41-2.37)

1.91

(1.46-2.49)