| Model 1 | Model 2 | Model 3 | Model 4 |
---|---|---|---|---|
Wealth quintiles | Â | Â | Â | Â |
   Fifth/poorest | 0.32*** | 0.56*** | 0.51*** | 0.57*** |
   Fourth | 0.46*** | 0.76* | 0.76* | 0.67*** |
   Third | 0.51*** | 0.79* | 0.79* | 0.79* |
   Second | 0.61*** | 0.83 | 0.83 | 0.84 |
   First/non-poor | 1.00 | 1.00 | 1.00 | 1.00 |
Intervention Group and Time of Survey | Â | Â | Â | Â |
Group | Â | Â | Â | Â |
   Control | 1.00 | 1.00 | 1.00 | 1.00 |
   Intervention | 1.63* | 1.53 | 1.47 | 1.45 |
Time/month of Survey | Â | Â | Â | Â |
   Pre-intervention (December 2009) |  | 1.00 | 1.00 | 1.00 |
   Post-intervention (December 2010) | 1.42*** | 1.43*** | 1.38*** | 1.36*** |
Maternal Factors | Â | Â | Â | Â |
Mother's Age | Â | Â | Â | Â |
   24 or younger |  | 1.00 | 1.00 | 1.00 |
   25-29 |  | 1.15 | 1.15 | 1.15 |
   30 or older |  | 1.44*** | 1.44*** | 1.44*** |
Parity/Living children | Â | Â | Â | Â |
   1 |  | 1.00 | 1.00 | 1.00 |
   2 |  | 0.63*** | 0.63*** | 0.62*** |
   3 |  | 0.47*** | 0.47*** | 0.47*** |
   4 |  | 0.37*** | 0.37*** | 0.37*** |
   5 or more |  | 0.32*** | 0.32*** | 0.32*** |
Mother's education | Â | Â | Â | Â |
   None |  | 1.00 | 1.00 | 1.00 |
   Primary |  | 1.33* | 1.32* | 1.33* |
   Middle |  | 1.30* | 1.30* | 1.31* |
   Secondary |  | 1.96*** | 1.95*** | 1.97*** |
   Matriculate or higher |  | 2.43*** | 2.44*** | 2.46*** |
Factors unrelated to the voucher scheme | Â | Â | Â | Â |
Travel time to nearest health facility | Â | Â | Â | Â |
   More than 15 minutes |  | 1.00 | 1.00 | 1.00 |
   15 minutes or less |  | 1.03 | 1.03 | 1.03 |
Television viewership | Â | Â | Â | Â |
   Never or sometimes |  | 1.00 | 1.00 | 1.00 |
   Daily |  | 1.23* | 1.24* | 1.23* |
Interaction 1 (intervention*time*5th quintile) | Â | Â | 1.41* | Â |
Interaction 2 (intervention*time*4th quintile) | Â | Â | Â | 1.64** |