Table 1.
Characteristics of studied population in the EMASAR study 2011–2012.
| Characteristic | N (Missing Data) |
Ushuaia | Salta | p Value |
|---|---|---|---|---|
| All participants | 696 | 198 | 498 | |
| Maternal age (years), mean (SD) | 696 (0) | 28.8 (6.6) | 24.7 (6.2) | <0.00 a |
| Pre-pregnancy BMI (kg/m2) | 637 (59) | 23.5 (4.1) | 23.5 (4.2) | 0.884 a |
| Parity | 696 (0) | 0.477 b | ||
| Para 1, n (%) | 82 (41.4) | 221 (44.4) | ||
| Parous, n (%) | 116 (58.6) | 277 (55.6) | ||
| Smoking, last year | 696 (0) | 0.375 b | ||
| No, n (%) | 141 (71.2) | 371 (74.5) | ||
| Yes, n (%) | 57 (28.8) | 127 (25.5) | ||
| Highest completed education level | 695 (1) | <0.001 b | ||
| Primary and secondary, n (%) | 102 (51.5) | 445 (89.5) | ||
| Tertiary and university, n (%) | 96 (48.5) | 52 (10.5) | ||
| Residence | 696 (0) | 0.087 b | ||
| Urban, n (%) | 181 (91.4) | 432 (86.7) | ||
| Semi-urban and rural, n (%) | 17 (8.6) | 66 (13.3) | ||
| Gestational age (weeks), mean (SD) | 658 (38) | 38.8 (1.3) | 38.8 (1.3) | 0.579 a |
| Birth weight (g), mean (SD) | 687 (9) | 3383.2 (438.9) | 3292.9 (476.1) | 0.016 a |
| Birth length (cm), mean (SD) | 688 (8) | 49.7 (2.1) | 48.5 (2.2) | <0.001 a |
| Head circumference (cm), mean (SD) | 686 (10) | 34.9 (1.5) | 34.3 (1.4) | <0.001 a |
| Low birth weight, n (%) | 23 | 5 (2.5) | 18 (3.6) | 0.463 b |
| Preterm birth, n (%) | 32 | 15 (7.6) | 17 (3.4) | 0.032 b |
a Mann–Whitney U test. b Chi-square test.