Table 2.
Gestational age at birth | Birth weight | Illness severity day 1 | Mechanical ventilation (days) | Oxygen (days) | Pain exposure (number of skin breaking procedures) | |
---|---|---|---|---|---|---|
Birth weight | 0.79** | |||||
Illness severity day 1 (SNAP-II) | —0.52** | –0.39** | ||||
Mechanical ventilation (days) | —0.76** | –0.61** | 0.43** | |||
Other respiratory support (days) | —0.48** | –0.33** | 0.25* | 0.15 | ||
Pain exposure (number of skin breaking procedures) | —0.77** | –0.64** | 0.58** | 0.80** | 0.38** | |
Morphine exposure (daily average mg/kg X days) | —0.55** | –0.45** | 0.39** | 0.68** | 0.06 | 0.65** |
P < 0.01
P < 0.05