Table 1.
Characteristics of prenatal care use based on the minimum calendar of the ministry of health
| Variables | n | % |
|---|---|---|
| Received prenatal care | ||
| Yes | 4,968 | 98.0 |
| No | 99 | 2.0 |
| Number of visits | ||
| None | 99 | 2.0 |
| 1 – 3 | 521 | 10.3 |
| 4 – 5 | 1,122 | 22.1 |
| ≥ 6 | 3,065 | 60.5 |
| Missing | 260 | 5.1 |
| Starting trimester | ||
| No prenatal care | 99 | 2.0 |
| 1st trimester | 3,356 | 66.2 |
| 2nd trimester | 1,395 | 27.5 |
| 3rd trimester | 117 | 2.3 |
| Missing | 100 | 2.0 |
| Site of prenatal care | ||
| No prenatal care | 99 | 2.0 |
| Public sector of SUS | 4,052 | 80.0 |
| Private | 218 | 4.3 |
| Insurance/Health plan | 690 | 13.6 |
| Missing | 8 | 0.1 |
| Classification of prenatal care | ||
| Adequate* | 2,949 | 58.2 |
| Inadequate | 1,858 | 36.7 |
| Missing | 260 | 5.1 |
| Total | 5067 | 100 |
São Luís, Brazil, 2010.
*Prenatal care was considered to be adequate when started up to the fourth month of pregnancy and when it involved at least six visits for a term pregnancy or a smaller number of visits according to gestational age. The missing category corresponds to 260 cases without information about the number of visits and/or the trimester when prenatal care was started (source: ref. 10). SUS: Unified Health System in the Brazilian acronym.