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Table 1 Risk factors for placental malaria infection 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 Placental positive, N (%) Univariate analyses Logistic regression analyses
OR (95% CI) P OR (95% CI) P
Site of collection
 Ed-Dmazen Hospital 372 (32.4) 263 (38.8) 2.8 (2.1–3.7) <0.001 1.1 (0.6–1.8) 0.831
 El-Roseires Hospital 227 (19.8) 162 (23.9) 2.9 (2.1–4.1) <0.001 0.6 (0.4–1.0) 0.051
 Surgical complex 550 (47.9) 252 (37.2) Reference   Reference  
Age groups (years)a
 <23.3 674 (58.7) 561 (82.9) 15.3 (11.4–20.5) <0.001 3.2 (1.9–5.5) <0.001
 ≥23.3 475 (41.3) 116 (17.1) Reference   Reference
Parity
 Primiparae 553 (48.1) 459 (67.8) 23.1 (15.9–33.6) <0.001 3.9 (2.1–7.6) <0.001
 Secundiparae 297 (25.8) 166 (24.5) 6.0 (4.1–8.7) <0.001 2.8 (1.5–5.1) <0.001
 Multiparae 299 (26.0) 52 (7.7) Reference   Reference  
Residence
 Rural 347 (30.2) 256 (37.8) 2.4 (1.9–3.3) <0.001 0.7 (0.5–1.2) 0.244
 Urban 802 (69.8) 421 (62.2) Reference   Reference  
Education
 <Secondary level 922 (80.2) 589 (87.0) 2.7 (2.0–3.7) <0.001 1.7 (1.0–2.8) 0.049
 ≥Secondary level 227 (19.8) 88 (13.0) Reference   Reference  
Antenatal care visits
 Not attended 697 (60.7) 566 (83.6) 13.2 (9.9–17.6) 0.001 11.9 (7.8– 18.1) <0.001
 Attended 452 (39.3) 111 (16.4) Reference   Reference  
Use bed nets
 No 1047 (91.1) 659 (97.3) 2.0 (1.6–2.4) <0.001 3.5 (1.7–6.8) <0.001
 Yes 102 (8.9) 18 (2.7) Reference   Reference  
Peripheral malaria
 Positive 434 (37.8) 416 (61.4) 40.2 (24.4–66.0) <0.001 13.5 (7.6–23.9) <0.001
 Negative 715 (62.2) 261 (38.6) Reference   Reference  
  1. N number, OR odds ratio, CI confidence interval
  2. aCorrected for parity. Four women were missing data on education