Symptomatic group n=39 | Control group n=59 | Total n=98 | P value | |
Sex | ||||
Male | 19 (49%) | 37 (63%) | 56 (60%) | 0.171 |
Female | 20 (51%) | 22 (37%) | 42 (40%) | |
Age group (age at the time of survey) | 0.894 | |||
1–3 years | 12 (31%) | 19 (32%) | 31 (32%) | |
5–7 years | 17 (43%) | 23 (39%) | 40 (41%) | |
13–15 years | 10 (26%) | 17 (29%) | 27 (27%) | |
Birth information | ||||
Preterm birth (< 37 weeks) | 2 (5%) | 4 (7%) | 6 (6%) | 0.739 |
Birth weight (g), mean (SD)* | 3210 (582) | 3320 (735) | 3270 (674) | 0.426 |
Birth height (cm), mean (SD)† | 49 (2.1) | 49 (3.2) | 49 (2.8) | 0.401 |
Gestational age-adjusted SD score, mean (SD)‡ | −0.77 (1.2) | −0.58 (1.4) | −0.66 (1.4) | 0.532 |
Twin pregnancy | 1 (3%) | 4 (7%) | 5 (5%) | 0.353 |
Time of operation | 0.326 | |||
< 1 months of age | 22 (56%) | 29 (49%) | 51 (52%) | |
1–12 months of age | 12 (31%) | 26 (44%) | 38 (39%) | |
> 12 months of age | 5 (13%) | 4 (7%) | 9 (9%) | |
Age (days) at time of surgery, median (IQR) | 17 (5.5, 149.5) | 50 (7, 141.5) | 19.5 (6, 143.8) | 0.655 |
Urgency | ||||
Urgent | 10 (25%) | 12 (20%) | 22 (22%) | 0.538 |
Elective | 29 (75%) | 47 (80%) | 76 (78%) | |
Thymectomy§ | ||||
Partial | 30 (77%) | 48 (81%) | 78 (80%) | 0.480 |
Total | 4 (10%) | 10 (17%) | 14 (14%) | |
Additional open-heart surgeries during the follow-up period | ||||
None | 30 (77%) | 50 (85%) | 80 (82%) | 0.328 |
One | 8 (20%) | 7 (12%) | 15 (15%) | 0.245 |
Two | 1 (3%) | 2 (3%) | 3 (3%) | 0.816 |
*N/A for 2 cases in the symptomatic group and for 8 in the control group.
† N/A for 3 cases in the symptomatic group and for 18 in the control group.
‡ N/A for 6 cases in the symptomatic group and for 13 in the control group.
§N/A for 5 cases in the symptomatic group and for 1 in the control group.