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Table 1 Characteristics of neonates and mothers in the study groups (n = 250)

From: Outcome of late preterm newborns in Upper Egypt

VariableLate preterm (n = 70)Full term (n = 180)pOdds ratio for preterm (95% CI)
Gestational age (weeks)
 Median (IQR)35.9 (35.0–36.4)39.0 (38.3–39.9)< 0.001 (Z)* 
Sex
 Male31 (44.3%)80 (44.4%)0.982 (χ2) 
 Female39 (55.7%)100 (55.6%) 
Birth weight
 Mean ± SD2310.7 ± 361.93147.4 ± 608.3< 0.001 (t)* 
 SGA8 (11.4%)4 (2.2%)0.002 (χ2)* 
 LGA1 (1.4%)13 (7.2%) 
Length
 Mean ± SD45.6 ± 5.648.3 ± 1.8< 0.001 (t)* 
HC
 Mean ± SD31.8 ± 1.433.8 ± 1.4< 0.001 (t)* 
 Microcephaly3 (4.3%)1 (0.6%)0.038 (χ2)* 
 Macrocephaly1 (1.4%)2 (1.1%)0.843 (χ2) 
Age at delivery (years)
< 174 (5.7%)1 (0.6%)0.001 (χ2)* 
 17–3451 (72.9%)164 (91.1%) 
3515 (21.4%)15 (8.3%) 
Parity
 Primigravida17 (24.3%)57 (31.7%)0.283 (χ2) 
 Multigravida53 (75.7%)123 (68.3%) 
Previous preterm delivery
 Yes10 (14.3%)11 (6.1%)0.036 (χ2)* 
Abortion
 No46 (65.7%)119 (66.1%)0.025 (χ2)* 
 One time18 (25.7%)58 (32.2%) 
 Two times6 (8.6%)3 (1.7%) 
Antenatal care visits at last pregnancy
 Yes50 (71.4%)138 (76.6%)0.578 (χ2) 
 Mean ± SD3.7 ± 1.93.9 ± 2.10.512 (t) 
Medical diseases
 DM6 (8.6%)18 (10.0%)0.736 (χ2)0.84 (0.32–2.22)
 Hypertension19 (27.1%)26 (14.4%)0.012 (χ2)*2.21 (1.13–4.37)
 UTI19 (27.1%)38 (21.1%)0.309 (χ2)1.39 (0.74–2.63)
 Fever/rash6 (8.6%)7 (3.9%)0.133 (χ2)2.32 (0.75–7.16)
 Cardiac1 (1.4%)1 (0.6%)0.123 (χ2)2.59 (0.16–42.05)
 Respiratory3 (4.3%)3 (1.7%)0.230 (χ2)2.64 (0.52–13.41)
  1. IQR interquartile range, SD standard deviation, t independent samples t test, UTI urinary tract infection, χ2 chi square test for independence, Z Mann-Whitney test
  2. *Significant p value < 0.05