Table 2.
Patient characteristics and performer experience in relation to the success rate and quality assessment
| Success of first attempt (n = 86) | Quality of technical conditions (n = 76)# | |||||
|---|---|---|---|---|---|---|
| Success (n = 45) | Failure (n = 41) | P-value | Good quality (n = 45) | Inadequate quality (n = 31) | P-value | |
| Patient characteristics | ||||||
| Gestational age (week), median (IQR) | 28.3 (26.7–29.4) | 28.4 (25.9–29.9) | 0.92 | 28.3 (26.6–29.6) | 28.1 (27.0–30.0) | 0.70 |
| Birth weight (gm), median (IQR) | 1030 (763–1300) | 1000 (750–1328) | 0.94 | 1050 (788–1313) | 1000 (800–1300) | 0.76 |
| Birth weight <10th percentile, n (%) | 13 (29) | 12 (29) | 1.00 | 12 (27) | 12 (39) | 0.32 |
| Postnatal age (h), median (IQR) | 3.3 (2.1–11.6) | 3.3 (2.1–7.3) | 0.58 | 3.5 (2.5–9.6) | 3.2 (2.0–10.7) | 0.53 |
| Male gender, n (%) | 25 (56) | 24 (59) | 0.83 | 24 (53) | 21 (68) | 0.24 |
| Procedure characteristics | ||||||
| Performer of first attempt is neonatologist, n (%) | 33 (73) | 13 (33)a | <0.001 | 29 (64) | 16 (52) | 0.34 |
| Good quality of technical conditions, n (%) | 34 (76) | 11 (35)b | 0.001 | |||
| Success of the first attempt, n (%) | 34 (76) | 11 (35) | 0.001 | |||
aFor one procedure the performer was not reported
bFor ten procedures quality of technical conditions was missing