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Table 3 Perinatal and background information in VLBW participants according to diagnostic status during adolescence

From: A longitudinal study of associations between psychiatric symptoms and disorders and cerebral gray matter volumes in adolescents born very preterm

 

Persisting/Developing diagnosis (n = 24)

Healthy/Becoming healthy (n = 30)

Male n (%)

10 (41.7)

14 (46.7)

Birth weight (grams) M (SD)

1096.25 (264.41)**

1269.30 (159.40)**

z-score weight M (SD)

-0.82 (1.50)

-0.52 (1.40)

Gestational age (weeks) M (SD)

28.80 (2.93)

29.67 (2.59)

Head circumference (cm) M (SD)

26.52 (2.51)

26.64 (1.64)

Days before regained weight M (SD)

16.11 (9.38)

16.62 (7.82)

Days on ventilator M (SD)

9.45 (17.52)

2.22 (3.80)

Days in NICU M (SD)

92.15 (84.59)

58.89 (21.92)

Apgar 1 min M (SD)

5.71 (2.70)**

7.65 (1.38)**

Apgar 5 min M (SD)

7.89 (2.36)

9.04 (0.87)

IQ 19 years M (SD)

80.00 (71.59)**

93.04 (9.40)**

Socio-economic status M (SD)

3.09 (1.37)

3.37 (1.27)

SES class 1 n (%)

4 (19)

3 (10)

SES class 2 n (%)

3 (14)

4 (14)

SES class 3 n (%)

6 (29)

6 (21)

SES class 4 n (%)

4 (19)

10 (34)

SES class 5 n (%)

4 (19)

6 (21)

Mother’s age (years) M (SD)

42.95 (4.59)

43.37 (4.96)

  1. *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001 (Persisting/increasing VLBW versus Healthy/decreasing VLBW). Significant results marked bold. Mann–Whitney U-test. Z-score weight: Standard deviation score of weight in relation to gestational age and gender. Abbreviations: IQ Intelligence quotient, NICU Neonatal Intensive Care Unit, SD Standard deviation, VLBW Very low birth weight (birth weight ≤ 1500)