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Table 2 Risk factors for maternal anaemia in Sudanese women using univariate and logistic regression analyses

From: Placental malaria and its effect on pregnancy outcomes in Sudanese women from Blue Nile State

Characteristics N (%) of the total Anaemia, N (%) Univariate analyses Logistic regression analyses
OR (95% CI) P OR (95% CI) P
Site of collection
 Ed-Dmazen Hospital 372 (32.4) 284 (76.3) 2.9 (2.2–3.9) <0.001 2.0 (1.3–3.3) 0.002
 El-Roseires Hospital 227 (19.8) 173 (76.2) 2.9 (2.0–4.1) <0.001 1.6 (0.9–2.7) 0.074
 Surgical complex 550 (47.9) 286 (52.0) Reference   Reference  
Age groups (years)a
 <23.3 674 (58.7) 547 (81.2) 6.1 (4.7–7.9) <0.001 3.2 (1.6–6.1) <0.001
 ≥23.3 475 (41.3) 196 (41.3) Reference   Reference  
Parity
 Primiparae 553 (48.1) 457 (82.6) 7.8 (5.6–10.8) <0.001 1.4 (0.7–2.8) 0.252
 Secundiparae 297 (25.8) 173 (58.2) 2.2 (1.6–3.1) <0.001 1.0 (0.5–1.8) 0.874
 Multiparae 299 (26.0) 113 (37.8) Reference   Reference  
Residence
 Rural 347 (30.2) 264 (76.1) 2.1 (1.6–2.8) <0.001 1.0 (0.6–1.6) 0.955
 Urban 802 (69.8) 479 (59.7) Reference   Reference  
Education
 <Secondary level 922 (80.2) 649 (70.4) 3.3 (2.4–4.5) <0.001 2.8 (1.6–4.8) <0.001
 ≥Secondary level 227 (19.8) 94 (41.4) Reference   Reference
Antenatal care visits
 Not attended 697 (60.7) 574 (82.4) 7.8 (5.9–10.2) <0.001 11.9 (7.8–18.1) <0.001
 Attended 452 (39.3) 169 (37.4) Reference   Reference  
Use bed nets
 No 1047 (91.1) 702 (67.0) 3.0 (1.9–4.5) <0.001 1.3 (0.8– 2.4) 0.228
 Yes 102 (8.9) 41 (40.2) Reference   Reference  
Peripheral malaria
 Positive 434 (37.8) 417 (96.1) 29.2 (17.6–48.5) <0.001 6.6 (3.4–12.5) <0.001
 Negative 715 (62.2) 326 (45.6) Reference   Reference  
Placental malaria
 Positive 677 (58.9) 639 (94.4) 59.5 (40.1–88.1) <0.001 41.6 (23.3–74.4) <0.001
 Negative 472 (41.1) 104 (22.0) Reference   Reference  
  1. N number, OR odds ratio, CI confidence interval
  2. aCorrected for the site. Four women were missing data on education