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Table 1 Description of the study population

From: Maternal dietary consumption of legumes, vegetables and fruit during pregnancy, does it protect against small for gestational age?

Variable Cases Controls P-value
Marital status, n (%) 0.036
 Single 37 (7.1) 42 (8.1)  
 Stable couple 161 (31.1) 124 (23.9)  
 Married 320 (61.8) 352 (68.0)  
Education level, n (%) 0.084
 Primary 112 (21.6) 93 (17.9)  
 High school, not ended 42 (8.1) 28 (5.4)  
 High school 185 (35.7) 190 (36.7)  
 University 179 (34.6) 207 (40.0)  
Previous preterm/low birthweight newborn (yes), n (%) 64 (12.4) 26 (5.0) <  0.001
Kessner index (prenatal care), n (%) 0.737
 Adequate 259 (50.0) 253 (48.8)  
 Intermediate 185 (35.7) 182 (35.2)  
 Inadequate 74 (14.3) 83 (16.0)  
Smoking during pregnancy, n (%) 149 (28.8) 80 (15.4) <  0.001
Preeclampsia, n (%) 46 (8.9) 11 (2.1) <  0.001
Weight gain throughout pregnancy (g/week), mean (SD) 278 (121) 310 (114) <  0.001
Body mass index in the first trimester of pregnancy (Kg/m2), mean (SD) 23.1 (4.5) 23.9 (4.1) <  0.001
Alcohol intake (g/week), mean (SD) 4.2 (18.5) 3.1 (15.2) 0.312
Fish intake (g/day), mean (SD) 83.4 (48.4) 92.0 (57.0) 0.009
Gestational age (days), mean (SD) 271 (11) 276 (9) <  0.001
Delivery by caesarean, n (%) 127 (24.2) 120 (23.2) 0.854