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Table 6 Characteristics of children lost to follow up

From: Characteristics and outcomes in children on long-term mechanical ventilation: the experience of a pediatric tertiary center in Rome

CharacteristicsNIVIMVp values
N° of Subjects56/25918/99χ2 = 0.3434; p = 0.5579
Male/Female27/298/10χ2 = 0.0766; p = 0.7819
Area of residence
 - Northern Italy2/540/180.652; p = 0.4195
 - Central Italy30/2611/80.106; p = 0.7452
 - Southern Italy22/347/110.0009; p = 0.9762
 - Outside Italy2/540/180.652; p = 0.4195
Age at start of LTV (years)4.7 (0.7–10.3)9.0 (2.0–14.2)p = 0.058729
Major diagnostic categories
 - NMDs16/405/13χ2 = 0.00416; p = 0.9485
 - Upper airway diseases27/290/18χ2 = 13.479; p = 0.0002
 - Lower airway diseases5/514/14χ2 = 2.223; p = 0.1360
 - CNS diseases1/557/11χ2 = 19.185; p < 0.0001
 - Abnormal ventilatory control1/551/17χ2 = 0.726; p = 0.3941
 - Other6/501/17χ2 = 0.418; p = 0.5182
Hours/day spent under mechanical ventilation (< 12/≥12)50/67/11χ2 = 19.287; p < 0.0001
Home health care (yes/no)3/5318/0χ2 = 59.219; p < 0.0001
  1. LTV Long Term Ventilation, NIV Noninvasive Ventilation, IMV Invasive Mechanical Ventilation, NMDs Neuromuscular Diseases, CNS diseases Central Nervous System diseases