Table 2.
Multivariate polytomous logistic regression of factors associated with ANC initiation in the 2nd and 3rd trimesters relative to 1st trimester in three districts in Tanzania, 2011 (n = 777)
| |
ANC initiation in the 2nd trimester relative to 1st trimester |
ANC initiation in the 3 rdtrimester relative to 1st trimester |
||
|---|---|---|---|---|
| Variable | Related risk ratio (RRR) | 95% confidence interval (CI) | Related risk ratio (RRR) | 95% confidence interval (CI) |
|
Pregnancy intensions |
|
|
|
|
| Intendeda |
1.00 |
- |
1.00 |
- |
| Mistimed |
1.68** |
1.10-2.58 |
2.81 |
1.41-5.59 |
| Unwanted |
2.00* |
1.05-3.82 |
4.10*** |
1.68-10.00 |
|
Gravidity-Age intentions |
|
|
|
|
| Gravidity |
1.58* |
1.04-2.39 |
2.27** |
1.21-4.27 |
| Age |
1.06* |
1.01-1.12 |
1.04 |
0.96-1.13 |
| Gravidity*Age |
0.99 |
0.98-1.00 |
0.98* |
0.97-1.00 |
|
Education |
|
|
|
|
| None (never been to school)a |
1.00 |
- |
1.00 |
- |
| Primary/higher |
0.83 |
0.50-1.38 |
2.12 |
0.81-5.57 |
|
Household wealth |
|
|
|
|
| Poora |
1.00 |
- |
1.00 |
- |
| Middle |
1.11 |
0.71-1.75 |
1.31 |
0.62-2.77 |
| Rich |
1.73 |
0.98-3.06 |
2.38* |
1.01-5.64 |
|
Marital status |
|
|
|
|
| Marrieda |
1.00 |
- |
1.00 |
- |
| Ever married |
1.45 |
0.53-3.95 |
3.09 |
0.86-11.08 |
| Single |
1.21 |
0.69-2.11 |
1.61 |
0.15-17.79 |
|
Religion |
|
|
|
|
| Christiana |
1.00 |
- |
1.00 |
- |
| Muslim |
1.31 |
0.85-2.02 |
0.9 |
0.46-1.79 |
| Other (e.g. traditional) |
2.41 |
0.71-8.21 |
1.61 |
0.15-17.79 |
|
District |
|
|
|
|
| Kilomberoa |
1.00 |
- |
1.00 |
- |
| Rufiji |
0.97 |
0.55-1.69 |
0.90 |
0.36-2.26 |
| Ulanga |
0.66 |
0.38-1.12 |
0.45 |
0.17-1.16 |
| Travel time to health facility (hours) | 1.23 | 0.95-1.59 | 1.26 | 0.86-1.84 |
***P<0.01, **P<0.02, *P<0.05; aReference/baseline category.