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Table 2 Health-related data and laboratory examinations

From: Prevalence of Plasmodium falciparum infection among pregnant women at first antenatal visit in post-Ebola Monrovia, Liberia

Variables Uninfected (n  = 171, 87.7%)a P. falciparum infection (n  = 24, 12.3%)a p
n (%) n (%)
Age (n  = 191)
 Mean (SD) 27.6 (SD 5.88) 24.9 (7.19) 0.045b
Anaemia (n  = 193)
 Mean haemoglobin levels (SD) 11.26 (1.45) 10.89 (1.13) 0.231b
Gravidity (n  = 194)
 Multigravidae 128 (75.3%) 13 (54.2%)  
 Primigravidae 42 (24.7%) 11 (45.8%) 0.030c
Gestational age (n  = 195)
 1st trimester (1–14 weeks) 59 (34.5%) 10 (41.7%)  
 2nd trimester (15–28 weeks) 100 (58.5%) 11 (45.8%)  
 3rd trimester (≥ 29 weeks) 12 (7.0%) 3 (12.5%) 0.423c
Fever (n  = 188)
 No 164 (98.2%) 18 (85.7%)  
 Yes, ≥ 38 °C at point of enrolment 3 (1.8%) 3 (14.3%) 0.019d
Anti-malarial use (n  = 195)
 Not in the current pregnancy 123 (71.9%) 17 (70.8%)  
 Yes in the current pregnancy 48 (28.1%) 7 (29.2%) 0.911c
Tuberculosis (n  = 195)
 Not on TB treatment 170 (99.4%) 23 (95.8%)  
 Self-reported on TB treatment 1 (0.6%) 1 (4.2%) 0.232d
HIV rapid test (n  = 167)
 Confirmed negative test 143 (97.9%) 19 (90.5%)  
 Confirmed positive test 3 (2.0%) 2 (9.5%) 0.119d
Syphilis rapid test (n  = 160)
 Confirmed negative test 140 (100.0%) 19 (95.0%)  
 Confirmed positive test 0 (0.0%) 1 (5.0%) 0.125d
ITN (n  = 195)
 Did not used an ITN the preceding night 123 (71.9%) 16 (66.7%)  
 Slept under an ITN the preceding night 48 (28.1%) 8 (33.3%) 0.594c
Education completed (n  = 186)
 None 25 (14.6%) 3 (12.5%)  
 Primary 24 (14.0%) 2 (8.3%)  
 Secondary 97 (56.7%) 16 (66.7%)  
 Tertiary 1 (0.6%) 0 (0.0%)  
 University 17 (9.9%) 1 (4.2%) 0.800c
Current occupation (n  = 194)
 Professional/technological 12 (7.0%) 2 (8.3%)  
 Sales/services: self-employed 62 (36.3%) 6 (25.0%)  
 Sales/services: salaried 12 (7.0%) 2 (8.3%)  
 Skilled/unskilled manual 14 (8.2%) 1 (4.2%)  
 Clerical 4 (2.3%) 0 (0.0%)  
 Student (no other paid occupation) 43 (25.2%) 9 (37.5%)  
 Unemployed 23 (13.5%) 4 (16.7%) 0.420c
  1. n number of participants
  2. aOf the total (n = 195). Frequencies and rates in bivariate analyses below exclude missing values
  3. bt-test
  4. cPearson χ2
  5. dFisher’s exact