Table 4 Decomposition of changes in adequate antenatal care visits 2010 to 2016
Characteristics | Differences in population structure (E) | Differences in coefficients (C) | ||||
|---|---|---|---|---|---|---|
| Â | Coefficient | % | p-value | Coefficient | % | p-value |
Age at delivery (in years) | ||||||
 15-19 | 1.0 |  |  | 1.0 |  |  |
 20-24 | -0.0014 | -1.7 | 0.138 | -0.010 | -12.2 | 0.209 |
 25-29 | -0.0002 | -0.2 | 0.252 | -0.009 | -11.4 | 0.255 |
 30-34 | 0.0002 | 0.2 | 0.009 | -0.011 | -13.1 | 0.116 |
 35+ | 0.001 | 1.2 | 0.006 | -0.001 | -1.6 | 0.875 |
Zones | ||||||
 Western zone | 1.0 |  |  | 1.0 |  |  |
 Northern zone | -0.0005 | -6.2 | <0.001 | 0.0013 | 1.6 | 0.785 |
 Central zone | -0.0006 | -0.8 | <0.001 | 0.0080 | 9.9 | 0.113 |
 Southern Highlands | -0.0028 | -3.5 | 0.006 | 0.0030 | 3.7 | 0.385 |
 Southern zone | -0.0017 | -2.2 | 0.004 | 0.0024 | 2.9 | 0.374 |
 Southwest Highlands | -0.0016 | -0.2 | 0.013 | 0.0173 | 21.4 | 0.001 |
 Lake Zone | 0.0026 | 3.2 | <0.001 | 0.0126 | 15.6 | 0.239 |
 Eastern zone | 0.0108 | 13.4 | <0.001 | 0.0053 | 6.6 | 0.303 |
 Zanzibar | -0.0003 | -0.4 | <0.001 | 0.0011 | 1.4 | 0.333 |
Highest level of education | ||||||
 No formal education | 1.0 |  |  | 1.0 |  |  |
 Primary education | -0.0011 | -1.3 | 0.324 | -0.014 | -17.6 | 0.356 |
 Secondary and above | 0.0063 | 7.1 | 0.073 | -0.002 | -2.4 | 0.367 |
Parity | ||||||
 1 child | 1.0 |  |  | 1.0 |  |  |
 2-3 children | 0.0003 | 0.4 | 0.009 | -0.078 | -9.6 | 0.378 |
 4-5 children | 0.0025 | 3.1 | 0.001 | -0.008 | -0.2 | 0.488 |
 6+ children | 0.0023 | 2.8 | <0.001 | -0.004 | -4.8 | 0.866 |
Wealth index | ||||||
 Poorest | 1.0 |  |  | 1.0 |  |  |
 Poorer | -0.0003 | -0.4 | 0.645 | 0.0051 | 6.3 | 0.419 |
 Middle | -0.0008 | -0.9 | 0.3 | 0.0017 | 2.1 | 0.761 |
 Richer | -0.0022 | -2.7 | <0.001 | 0.0044 | 5.5 | 0.428 |
 Richest | 0.0028 | 3.4 | 0.018 | 0.0087 | 10.7 | 0.122 |
Decision on respondent’s health | ||||||
 Respondent alone | 1.0 |  |  | 1.0 |  |  |
 Respondent & partner | 0.0042 | 5.2 | 0.255 | 0.0177 | 21.9 | 0.079 |
 Partner alone | 0.0057 | 7.1 | 0.125 | 0.0066 | 8.2 | 0.508 |
 Someone else | -0.0008 | -0.1 | 0.951 | 0.0005 | 0.6 | 0.728 |
Desire of last pregnancy | ||||||
 Wanted then | 1.0 |  |  | 1.0 |  |  |
 Wanted later | -0.003 | -3.7 | 0.024 | 0.007 | 8.7 | 0.102 |
 Wanted no more | -0.001 | -0.1 | 0.483 | -0.0017 | -2.1 | 0.412 |
First ANC initiated | ||||||
 Later than 1st trimester | 1.0 |  |  | 1.0 |  |  |
 Within 1st trimester | 0.0408 | 50.5 | <0.001 | -0.0016 | -2.0 | 0.459 |
Frequency of watching TV | ||||||
 Not at all | 1.0 |  |  | 1.0 |  |  |
 Less than once a week | 0.0007 | -0.9 | 0.821 | -0.0016 | -1.9 | 0.542 |
 At least once a week | 0.0024 | 2.9 | 0.122 | -0.0071 | -8.8 | 0.062 |
Constant | Â | Â | Â | -0.0045 | -5.5 | 0.947 |
Total | Â | 66.2 | <0.001 | Â | 33.8 | 0.004 |