Table 1. Average annual percentage variation of the absolute and relative contributions of Robson groups to the total proportion of C-sections in Brazil and its regions, 2014-2022.

Robson groups	Brazil		North		Northeast
	Absolute contribution	Relative contribution	Absolute contribution	Relative contribution	Absolute contribution	Relative contribution
	%	%	%	%	%	%
R1	-1.21 *	-1.46 *	-0.75	-1.67 *	-1.26 *	+2.17
R2	-1.53 *	-1.79	+1.84 *	+0.44	-0.73	-1.23 *
R3	+0.17	+0.02	+0.99 *	+0.03	+0.17	-0.70
R4	+0.52	+0.22	+3.40 *	+1.97 *	+1.67 *	+0.41
R5	+2.76 *	+2.49 *	+3.98 *	+2.98 *	+4.02 *	+2.78 *
R6	-1.32	-1.50 *	-0.69	-1.53	+0.32	-0.35
R7	+1.92 *	+1.67 *	+1.07	-0.17	+5.54 *	+4.17 *
R8	+1.32 *	+1.46 *	+1.84 *	+0.96	+2.84 *	+1.56 *
R9	-3.98 *	-4.22 *	-5.16	-7.63	-5.97 *	-5.58
R10	+1.86 *	+1.45 *	+5.74 *	+2.05 *	+3.37 *	+1.17 *
Robson groups	Southeast		South		Central-West
	Absolute contribution	Relative contribution	Absolute contribution	Relative contribution	Absolute contribution	Relative contribution
	%	%	%	%	%	%
R1	-1.57 *	-1.13 *	-0.21	-0.52	-1.85 *	-2.34 *
R2	-2.02 *	-1.72 *	-2.35 *	-2.63 *	+0.85	+0.39
R3	-0.39	-0.23	-0.10	-0.04	-0.19	-0.54
R4	-0.02	+0.34 *	-0.63	-0.88 *	+2.59 *	+2.19 *
R5	+1.84 *	+2.08 *	+2.65 *	+2.53 *	+3.82 *	+3.35 *
R6	-0.72 *	-0.22	-1.96 *	-2.29 *	-5.88 *	-6.31 *
R7	+1.88 *	+1.82 *	+0.33	+0.02	-3.75 *	-4.14 *
R8	+1.74 *	+1.56 *	+1.48	+1.40 *	+0.91	+0.92
R9	0.00	-0.95	-5.90 *	-7.33 *	-1.15	-7.00 *
R10	+1.01 *	+1.20 *	+1.32 *	+1.24 *	+3.74 *	+3.30 *

Source: prepared by the authors.

* Significant variation.