Gravidez na adolescência: estado nutricional referente ao ferro

The Prevalence of Nutritional Anaemia in Brazilian Pregnant Women: A Systematic Review and Meta-Analysis

“…Thirty-five studies [27][28][29][30][31][58][59][60][61][62][63] used the criteria proposed by the WHO for the diagnosis of anaemia (1972), which defines anaemia as a haemoglobin concentration <11 g/dL. The other criteria used were Hb < 11.6 g/dL [32] and Hb < 12 g/dL [57].…”

“…The other criteria used were Hb < 11.6 g/dL [32] and Hb < 12 g/dL [57]. Regarding the method used for identifying blood haemoglobin rates, the majority (n=31; 83.78%) [28][29][30][31][32]35,37,[39][40][41][42][44][45][46][47][48][49]51,[53][54][55][56][57][58]60,61] used venipuncture. The data collected came from public health services: community (n = 3; 8.11%) [36,50,62], hospitals (n = 4; 10.81%) [27,40,44,52], maternity hospitals (n = 4; 10.81%) [28,30,39,51], primary health units (n = 17; 45.95%) [29,31,32,34,37,38,42,43,[46]…”

“…The gestational week varied between seven [35] and 42 [40] and the age between 10 [29] and 49 years [29,58]. Thirty four studies (91.89%) presented cross-sectional design [27][28][29][30][31][32][33][34][35][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][56][57][58][59][60][61][62] and three (8.11%) were cohorts [36,55,63]. Among the selected articles, two studies were carried out with only pregnant adults [34,58] and four studies evaluated only adolescents [30,41,49,61].…”

“…The majority of the studies were carried out in the Northeast region (n = 16; 43.24%) [27,28,34,38,39,42,46,47,[50][51][52][53][54]56,62], followed by the Southeast region (n = 11; 29.73%) [30][31][32]40,41,44,49,55,57,61]. Four studies evaluated the Midwest region (10.81%) [33,45,58,59], two the North region (5.41%) [48,60], and four the South region (10.81%) [29,[35][36][37].…”

“…Although the WHO carries out worldwide periodic monitoring of anaemia in various groups, the last official data regarding the prevalence of anaemia in pregnant women in Brazil was published by the WHO in 2015. This data estimated that the global prevalence of anaemia for pregnant women aged 15-49 years in 2011 was 38.2% (95% CI [33][34][35][36][37][38][39][40][41][42], the African region presented 46.3 (95% CI [40][41][42][43][44][45][46][47][48][49][50][51], region of the Americas 24.9% (95% [19][20][21][22][23][24][25][26][27][28][29][30][31][32], European region 25.8% (95% CI [19][20][21][22][23][24][25][26][27][28][29][30]…”