TABLE 1

Characteristics of 56 Subjects Who Sustained 128 Fractures During Hospitalization, Mean (SD) or n (%)

Patient CharacteristicnTotal (n = 56)Single Fracture (n = 29)Multiple Fractures (n = 27)P
Age at time of index fracture,a n (%)56.02
 Birth–12 mo37 (66)15 (52)22 (81)
 >12 mo19 (34)14 (48)5 (19)
Gender, n (%)56.98
 Male25 (45)13 (45)12 (44)
 Female31 (55)16 (55)15 (56)
Admission diagnosis, n (%)56.24
 CHD13 (23)8 (28)5 (19)
 Prematurity12 (21)3 (10)9 (33)
 Esophageal atresia14 (25)8 (28)6 (22)
 Organ or bone marrow transplant5 (9)2 (7)3 (11)
 Other12 (21)8 (28)4 (15)
GA at birth, n (%)49.12
 Term (≥37 wk)23 (47)13 (59)10 (37)
 <37 wk26 (53)9 (41)17 (63)
GA, wk4333.4 (5.5)34.8 (4.7)32.3 (5.8).14
Birth wt, g362073 (1215)2418 (1111)1764 (1250).11
Birth wt for GA z score36−0.55 (1.1)−0.34 (1.2)−0.73 (1.0).30
Hospital location, n (%)56.11
 NICU20 (36)6 (21)14 (52)
 Medical-surgical ICU18 (32)11 (40)7 (26)
 Cardiac ICU12 (21)8 (28)4 (15)
 Other6 (11)4 (14)2 (7)
Acute immobilization, n (%)56.20
 Intubated and/or paralyzed49 (88)25 (86)24 (89)
 Not intubated or paralyzed7 (12)4 (14)3 (11)
Duration of mechanical ventilation, n (%)56.46c
 None7 (13)3 (10)4 (15)
 <4 wk15 (27)11 (38)4 (15)
 4–12 wk19 (34)8 (28)11 (41)
 >12 wk15 (27)7 (24)8 (30)
Reason fracture suspected, n (%)55.33
 Incidental finding on radiograph34 (61)15 (52)19 (70)
 Pain complaint16 (29)10 (34)6 (22)
 Limited use/mobility4 (7)2 (7)2 (7)
 Witnessed trauma/injury2 (4)2 (7)0 (0)
Wt for age z score,b units52−2.0 (1.8)−1.6 (2.1)−2.4 (1.5).11
Wt for age z score,b n (%)52.41
z score > –2.025 (48)14 (54)11 (42)
z score ≤ –2.027 (52)12 (46)15 (58)
Height for age z score,b units37−2.2 (2.1)−1.8 (2.5)−2.5 (1.7).33
Height for age z score,b n (%)37.89
z score > –2.018 (49)8 (50)10 (48)
z score ≤ –2.019 (51)8 (50)11 (52)
Survival status, n (%)56.67
 Died16 (29)9 (31)7 (26)
 Survived40 (71)20 (69)20 (74)
  • P values from t test or χ2 unless otherwise noted. Percentages rounded to nearest whole number. GA, gestational age.

  • a Age corrected for gestational age, if gestational age <37 wk and corrected age <24 mo.

  • b Wt for age and height for age z scores obtained within 60 d of index fracture.

  • c P values from Mantel-Haenszel χ2.