Demographic characteristics of the population in object (all patients, patients affected by postoperative apnea, and patients not affected by postoperative apnea)
| All patients(n=122) | Apnea (n=12) | No apnea (n=110) | P value | |
| Birth PCA, d | 271.06±12.27 (273.00, 264.50–280.00) | 271.70±16.01 (278.50, 260.75–280.00) | 271.09±11.92 (273.00, 265.00–280.00) | 0.92 |
| Birth weight, kg | 3177.88±465.52 (3200.00, 2940.00–3440.00) | 3111.25±298.85 (3200.00, 2996.25–3282.50) | 3185.21±480.77 (3210.00, 2940.00–3495.00) | 0.60 |
| Comorbidities, n (%) | 15 (12.29) | 1 (8.33) | 14 (12.72) | 0.66 |
| Age at admission, d | 35.06±13.54 (33.00, 26.00–42.75) | 33.08±13.16 (28.00, 25.50–34.00) | 35.27±13.62 (33.00, 26.00–44.50) | 0.59 |
| Admission weight, kg | 3794.30±642.53 (3700.00, 3382.50–4195.00) | 3592.50±526.07 (3480.00, 3237.50–4005.00) | 3816.32±652.22 (3705.00, 3400.00–4215.00) | 0.25 |
| Male gender, n (%) | 103 (91.96) | 11 (91.66) | 92 (83.63) | 0.47 |
Data are presented as mean±SD (median, IQR).
Comorbidities encountered: Down syndrome, atrial septal defect, patent ductus arteriosus, hydronephrosis, and ventricular pre-excitation.
Three patients were ex-premature babies (born at 30, 34, and 35+5 postconceptional weeks); none was treated with caffeine or was with bronchodysplasia.
P values apply to the apnea vs no apnea comparison (likelihood ratio test). Of the premature patients, one experienced apnea and two did not.
d, day; IQR, interquartile range; PCA, postconceptual age; SD, standard deviation.