262 Chapter 12 Table 1- Baseline characteristics at primary surgery Variable Primary anastomosis (Total = 48) Enterostomy (Total = 32) Statistics*1 (N=missing) (N=missing) Male 23 (48%) 21 (66%) P = 0.17 Premature 34 (72%) (N=1) 17 (55%) (N=1) P = 0.15 Mean birthweight in grams (std) 2858 (143) (N=1) 2615 (109) P = 0.13 Low birthweight (≤2500 gram) 21 (44%) (N=1) 10 (31%) P = 0.23 2 (1 – 4) 1 (1 – 2) P = 0.07 ASA score ≥III at primary surgery 15 (41%) (N=11) 13 (48%) (N=5) P = 0.88 Location of the atresia Jejunum 21 (44%) 5 (16%) P ≤ 0.01 Ileum 19 (40%) 25 (78%) Multiple locations 8 (17%) 2 (6%) Type of atresia Type 0 5 (10%) 0 P = 0.053 Type I 15 (31%) 5 (16%) Type II 6 (13%) 2 (6%) Type III-A 7 (15%) 12 (38%) Type III-B 4 (8%) 8 (25%) Type IV 11 (23%) 5 (16%) Comorbidities Gastroschisis 1 (2%) 7 (22%) F ≤ 0.001 Omphalocele 2 (4%) 1 (3%) F = 1 Volvulus 5 (10%) 5 (16%) F = 0.51 Malrotation 7 (15%) 1 (3%) F = 0.14 Meckel diverticula 1 (2%) 1 (3%) F = 1 Cystic fibrosis 0 2 (6%) F = 0.16 Meconium ileus 3 (6%) 3 (9%) F = 0.67 Other 2 (4%) 2 (6%) Not performed None 27 (57%) 10 (32%) P = 0.02 Number of anastomosis created during primary surgery 0 0 29 (91%) Not performed 1 38 (80%) 3 (9%) 2 5 (10%) 0 ≥3 5 (10%) 0 Intestinal tapering performed? Not done 26 (54%) 27 (84%) Not performed Yes, stapled 6 (13%) 1 (3%) Yes, Inversed suturing 14 (29%) 0 Unclear/no info 2 (4%) 4 (13%) Median length of follow-up in days (IQR) 920 (215 – 30025) 439 (267 – 2152) P = 0.17 Mean days from enterostomy to reversal (std) - 58 (5) - *1 = by ANOVA, Mann-Whitney U test, T-test, Chi-squared or Fisher’s exact (shown as F = ..) when applicable.
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