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Table 1 Socio-demographic characteristics of participants and outcome of different factors on the prevalence of anemia in pregnant women attending Adigrat General Hospital, northern Ethiopia, from April to September 2018

From: Prevalence of anemia and associated factors among pregnant women in Adigrat General Hospital, Tigrai, northern Ethiopia, 2018

Variables Frequency N (%) Anemia prevalence COR (95% CI) p-value AOR (95% CI) p-value
Positive (%)
Age (in years)
 18–25 169 (55.6) 5.32 1    
 26–34 117 (38.5) 10.26 0.40 (0.2, 1.2) 0.100  
 > 34 18 (5.9) 16.67 0.28 (0.06, 1.1) 0.070   
Educational level
 Illiterate 32 (13.8) 43.75 0.87 (0.7, 2.3) 0.700   
 1–8 87 (28.6) 3.45 0.50 (0.9, 3.5) 0.350   
 9–12 160 (52.6) 2.50 0.40 (0.061, 5.03) 0.900   
 > 12 15 (4.9) 1    
Residence
 Urban 213 (70.1) 3.75 1   1  
 Rural 91 (29.9) 17.58 8.70 (2.01, 38.4) 0.004 6.00 (1.34, 27.6) 0.019
Occupation
 Housewife 235 (77.3) 7.65 0.39 (0.051, 3.04) 0.370   
 Self employed 39 (12.8) 7.69 1.30 (0.08, 21.8) 0.850   
 Governmental 30 (9.9) 10.00 1    
Pregnancy gap (last and current pregnancy)
 1 year 37 (12.2) 32.43 0.02 (0.005, 0.08) 0.000 0.19 (0.02, 1.70) 0.138
 2 years 42 (13.8) 7.14 1.13 (0.12, 11.3) 0.900   
 3 years 42 (13.8) 7.14 0.50 (0.09, 3.5) 0.500   
 > 3 years 72 (23.7) 4.17 1.90 (0.19, 18) 0.600   
 First pregnancy 111 (36.5) 2.70 1   1  
Iron supplements  
 Yes 190 (62.5) 1   1  
 No 114 (37.5) 7.90 0.08 (0.02, 0.31) 0.000 0.06 (0.01, 1.22) 0.089
Presence of current blood loss
 Yes 43 (14.1) 41.86 5.90 (2.17, 16.2) 0.001 3.40 (1.16, 10.2) 0.026
 No 261 (85.9) 2.29 1   1  
Trimester (weeks)  
 1 60 (19.7) 1   1  
 2 96 (31.6) 3.12 2.00 (0.79, 12) 0.005 0.14 (0.65, 9.12) 0.070
 3 148 (48.7) 14.18 5.00 (1.49, 17.67) 0.010 4.90 (1.39, 17.6) 0.013
Recent history of abortion
 Yes 88 (29) 17.04 9.60 (2.76, 33.2) 0.000 7.90 (2.23, 28.1) 0.001
 No 216 (71) 4.17 1   1  
Current history of malaria
 Yes 42 (13.8) 14.28 0.04 (0.01, 0.1) 0.000 0.08 (0.02, 1.26) 0.061
 No 262 (86.2) 6.87 1    
History of coffee (the last 3 months)  
 Yes 212 (69.7) 8.01 0.12 (0.014, 0.81) 0.030 0.09 (0.010, 1.84) 0.054
 No 92 (30.3) 7.61 1    
Home delivery (previous pregnancy delivery)
 Yes 43 (14.1) 6.97 0.05 (0.02, 0.13) 0.000 0.26 (0.04, 1.60) 0.145
 No 261 (85.9) 8.01 1    
  1. COR, crude odds ratio, CI, confidence interval, AOR, adjusted odds ratio); 1 (referent); − (no)