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Table 1 Descriptive statistics for the final sample of infants and their parents

From: Impact of psychological distress and psychophysical wellbeing on posttraumatic symptoms in parents of preterm infants after NICU discharge

Subjects: Infants N = 23 Mothers N = 20 Fathers = 20
Variables Mean (SD; range)
Mean Birthweight 1375 g (SD = 458.57; 760–2500 g)
Normal Birthweight 1 (4.3%)
Low Birthweight 5 (21.7%)
Very Low Birthweight 13 (56.5%)
Extremely Low Birthweight 4 (17.3%)
Gestational Age 31 w (SD = 2.99; 25 to 36)
Late Preterm 4 (17.3%)
Early Preterm 14 (60.8%)
Extremely Low Gestational Age 5 (21.7%)
Type of birth
 Natural 5 (25%)
 Caesarean section 15 (75%)
 Mean days spent in NICU 59 (SD = 42.7; 17 to 199)
 Days spent with invasive and not invasive respiratory support 9 (SD = 17.3; 0 to 59)
Type of ventilation
 None 8 (34.7%)
 Not invasive 7 (30.4%)
 Invasive and not invasive 8 (34.7%)
Sex
 M 14 (70%)
 F 6 (30%)
 Maternal age 34 (SD = 6.6; 27 to 49)
 Primary school graduation 0
 Middle school graduation 2 (10%)
 High school diploma 13 (65%)
 University degree 5 (25%)
 Mean infant’s age at Time 1 19.8 days (SD = 7.5; 10 to 31)
 Mean infant’s age at Time 2 7.55 months (SD = 2.39; 6 to 12)