Maternal near miss and death among women with severe hypertensive disorders: a Brazilian multicenter surveillance study

Table 2 Estimated risk of severe maternal outcome (SMO = NM + MD) among women with severe hypertensive disorders during pregnancy or childbirth according to maternal characteristics, obstetric and medical history

Predictors	%	SMO		PLTC		PR	95% CI
Predictors	Total	n	%	n	%
Age (years)
≤ 19	18.7	65	16.6	1186	18.8	0.98	0.77 – 1.25
20 – 29	46.9	167	42.7	2976	47.1	(ref)
30 – 39	29.6	130	33.2	1856	29.4	1.23	0.98 – 1.55
≥ 40	4.9	29	7.4	297	4.7	1.67	1.21 – 2.31
Skin color (a)
White	36.3	136	46.4	1623	35.7	(ref)
Non white	63.7	157	53.6	2927	64.3	0.66	0.48 – 0.91
Education (b)
Elementary	46.0	128	51.2	2162	45.7	1.23	0.88 – 1.73
> elementary	54.0	122	48.8	2566	54.3	(ref)
Marital status (c)
With partner	52.7	207	67.6	2783	51.8	(ref)
Without	47.3	99	32.4	2589	48.2	0.53	0.37 – 0.76
Number of pregnancies (d)
1	45.7	159	41.4	2893	45.9	0.91	0.72 – 1.16
2 – 3	37.0	141	36.7	2330	37.0	(ref)
4 or more	17.4	84	21.9	1076	17.1	1.27	1.00 – 1.61
Number of Childbirths (d)
0	52.4	178	46.4	3327	52.8	0.80	0.65 – 1.00
1 – 2	36.3	153	39.8	2270	36.0	(ref)
3 or more	11.3	53	13.8	702	11.1	1.11	0.76 – 1.63
Previous C-sections (e)
0	76.8	282	75.0	4797	76.9	(ref)
1 or more	23.2	94	25.0	1442	23.1	1.10	0.86 – 1.41
Medical history (f)
Chronic hypertension	22.9	92	28.0	1243	22,6	1.30	1.00 – 1.70
Diabetes	2.7	16	4.9	139	2.5	1.87	1.00 – 3.49
Kidney disease	1.3	17	5.2	58	1.1	4.17	2.49 – 6.98
Collagen disorders	0.4	6	1.8	19	0.3	4.30	2.16 – 8.56
Heart disease	1.5	19	5.8	67	1.2	4.09	2.18 – 7.64
Smoking	3.5	12	3.6	194	3.5	1.03	0.50 – 2.11
Total		391		6315

PR: prevalence ratio adjusted by cluster effect.
Missing data: (a) 1863 cases; (b) 1728 cases; (c) 1028 cases; (d) 23 cases; (e) 91 cases; (f) 888 cases.
Values in bold mean they are statistically significant.

ISSN: 1742-4755