Table 2. Average annual percentage change (AAPC) in C-section rates in Robson groups in Brazil and its regions, 2014-2022.
| Brazil | Southeast | ||||||
|---|---|---|---|---|---|---|---|
| Robson groups | AAPC | 95%CI | Trend | Robson groups | AAPC | 95%CI | Trend |
| R1 | -1.67 * | -1.41; -0.83 | Decreasing | R1 | -2.31 * | -2.72; -1.90 | Decreasing |
| R2 | 0.90 * | 0.71; 1.85 | Increasing | R2 | 0.78 * | 0.35; 1.22 | Increasing |
| R3 | -1.29 * | -1.77; -0.49 | Decreasing | R3 | -3.28 * | -4.34; -2.23 | Decreasing |
| R4 | 2.10 * | 1.78; 2.49 | Increasing | R4 | 1.83 * | 1.32; 2.50 | Increasing |
| R5 | -0.09 | -0.17; 0.04 | Stationary | R5 | -0.23 * | -0.32; -0.09 | Decreasing |
| R6 | 0.41 * | 0.26; 0.57 | Increasing | R6 | 0.32 * | 0.13; 0.51 | Increasing |
| R7 | 0.67 * | 0.57; 0.77 | Increasing | R7 | 0.57 * | 0.29; 0.85 | Increasing |
| R8 | 0.58 * | 0.46; 0.70 | Increasing | R8 | 0.26 * | 0.00; 0.51 | Increasing |
| R9 | 0.02 | -0.03; 0.07 | Stationary | R9 | 0.17 * | 0.03; 0.31 | Increasing |
| R10 | 1.12 * | 0.90; 1.50 | Increasing | R10 | 0.39 * | 0.19; 0.59 | Increasing |
| North | South | ||||||
| Robson groups | AAPC | 95%CI | Trend | Robson groups | AAPC | 95%CI | Trend |
| R1 | -0.07 | -0.48; 0.57 | Stationary | R1 | -0.35 | -0.96; 0.51 | Stationary |
| R2 | 0.79 * | 0.48; 1.09 | Increasing | R2 | 0.32 * | 0.08; 0.69 | Increasing |
| R3 | 0.83 * | 0.34; 1.48 | Increasing | R3 | -1.42 | -2.58; 0.40 | Stationary |
| R4 | 1.63 * | -0.39; 2.63 | Increasing | R4 | 0.78 * | 0.09; 1.47 | Increasing |
| R5 | 0.04 | -0.05; 0.16 | Stationary | R5 | 0.04 | -0.11; 0.26 | Stationary |
| R6 | 0.05 | -0.47; 0.58 | Stationary | R6 | 0.20 | -0.04; 0.44 | Stationary |
| R7 | 0.39 * | 0.12; 0.68 | Increasing | R7 | 0.38 | -0.05; 0.81 | Stationary |
| R8 | 0.37 * | 0.12; 0.74 | Increasing | R8 | 0.49 * | 0.33; 0.65 | Increasing |
| R9 | -0.27 | -0.81; 0.26 | Stationary | R9 | 0.07 | -0.21; 0.35 | Stationary |
| R10 | 2.25 * | 1.87; 2.78 | Increasing | R10 | 0.76 * | -0.12; 1.39 | Increasing |
| Northeast | Central-West | ||||||
| Robson groups | AAPC | 95%CI | Trend | Robson groups | AAPC | 95%CI | Trend |
| R1 | -0.54 | -0.89; 0.04 | Stationary | R1 | -1.05 * | -1.75; -0.34 | Decreasing |
| R2 | 1.99 * | 1.57; 2.42 | Increasing | R2 | 1.35 * | 0.98; 1.74 | Increasing |
| R3 | -0.18 | -0.61; 0.38 | Stationary | R3 | -1.06 * | -1.80; -0.03 | Decreasing |
| R4 | 3.26 * | 2.31; 4.23 | Increasing | R4 | 2.85 * | 2.20; 3.62 | Increasing |
| R5 | -0.07 | -0.19; 0.12 | Stationary | R5 | 0.22 * | 0.05; 0.38 | Increasing |
| R6 | 1.04 * | 0.57; 1.52 | Increasing | R6 | 0.32 | -0.02; 0.62 | Stationary |
| R7 | 1.54 * | 1.37; 1.69 | Increasing | R7 | 0.54 * | 0.14; 0.84 | Increasing |
| R8 | 1.39 * | 1.18; 1.60 | Increasing | R8 | 0.38 * | 0.30; 0.48 | Increasing |
| R9 | -0.02 | -0.11; 0.08 | Stationary | R9 | -0.19 | -0.39; 0.07 | Stationary |
| R10 | 2.20 * | 1.86; 2.75 | Increasing | R10 | 1.76 * | 0.57; 2.975 | Increasing |
95%CI: 95% confidence interval.
Source: prepared by the authors.
* Significant trend.