Table 4: Prevalence of anemia according to medical characteristics.

VariableHb level (mg/dl)AnemiaTotalP value
Mean (SD)NoYes

Present of chronic diseases0.772
 Yes11.6 (1.1)17 (68)8 (32)25
 No11.3 (1.1)440 (65.2)235 (34.8)675
History of previous surgeries0.053
 Yes11.4 (1.2)117 (59.7)79 (40.3)196
 No11.3 (1.1)340 (67.5)164 (32.5)504
Hemorrhoids0.935
 Yes11.5 (1.2)76 (65)41 (35)117
 No11.3 (1.1)381 (65.4)202 (34.6)583
Peptic ulcer0.502
 Yes11.3 (1)16 (59.3)11 (40.7)27
 No11.4 (1.1)441 (65.5)232 (34.5)673
Folic acid intake in this pregnancy0.037
 Yes11.3 (1.1)328 (63.1)192 (36.9)520
 No11.5 (1.2)129 (71.7)51 (28.3)180
Multi-vitamins intake in this pregnancy<0.005
 Yes11 (1.3)98 (52.4)89 (47.6)187
 No11.5 (1.1)359 (70)154 (30)513