Table 2

Association between different measures of access and vaccination of children before and after adjusting for socio-economic status and age of the child (1 = not vaccinated, 0 = vaccinated)

Measures of access

Crude odds ratio (95%CI)

p-value

Adjusted odds ratio (95%CI)

p-value

Area of residence

Urban

1(Reference)

0.04

Semi-urban

2.75(0.77-9.8)

Rural

3.50(1.18-10.43)

Socio-economic status

Least poor

1(Reference)

<0.001

Middle poor

2.22(1.47-3.56)

Most poor

3.80(2.63-5.50)

Straight-line distance (km)

Zero-

1(Reference)

<0.001

1(Reference)

0.001

1 km-

1.96(1.34-2.87)

2.02(1.36-3.00)

2.5 km-

1.40(0.95-2.08)

1.49(0.99-2.23)

4.5 km-

2.20(1.49-3.24)

1.92(1.29-2.86)

Driving distance (km)

Zero-

1(Reference)

<0.001

1(Reference)

0.005

2 km-

1.48(0.95-2.29)

1.41(0.90-2.22)

7 km-

2.49(1.58-3.91)

2.24(1.40-3.57)

12 km-

1.69(1.08-2.64)

1.56(0.98-2.47)

Driving time (minutes)

Zero-

1(Reference)

<0.001

1(Reference)

0.003

10 minutes-

1.86(1.23-2.82)

1.52(0.99-2.34)

17 minutes-

2.55(1.72-3.80)

2.14(1.42-3.23)

29 minutes-

1.96(1.30-2.94)

1.75(1.15-2.65)

Al-Taiar et al. International Journal of Health Geographics 2010 9:38   doi:10.1186/1476-072X-9-38