Respiratory pattern | |||||
---|---|---|---|---|---|
Placenta histology | Low FiO2 | PD | EPPD | Row N | |
Inflammation, chorionic plate* | Yes | 12 | 48 | 75 | 212 |
No | 19 | 53 | 69 | 895 | |
Inflammation, chorion/deciduas† | Yes | 8 | 53 | 75 | 411 |
No | 25 | 51 | 67 | 696 | |
Neutrophilic infiltration, fetal stem vessels | Yes | 15 | 57 | 81 | 274 |
No | 19 | 50 | 67 | 814 | |
Umbilical cord vasculitis‡ | Yes | 11 | 53 | 73 | 181 |
No | 20 | 50 | 70 | 901 | |
Thrombosis of fetal stem vessels | Yes | 40 | 62 | 77 | 58 |
No | 17 | 52 | 70 | 1039 | |
Infarct | Yes | 32 | 56 | 75 | 190 |
No | 15 | 51 | 69 | 927 | |
Increased syncytial knots | Yes | 40 | 59 | 76 | 223 |
No | 13 | 50 | 69 | 898 | |
Decidual haemorrhage/fibrin deposition | Yes | 25 | 48 | 72 | 182 |
No | 17 | 52 | 70 | 923 | |
Per cent CLD | 18 | 52 | 70 | 52 | |
Maximum column N | 227 | 429 | 470 | 1026 |
The right-most column gives the maximum number of infants with the attribute listed in each row; any differences are due to missing data. All other data are the percentage of infants with CLD among those infants with the attribute listed in the two left columns and the respiratory patterns listed as column headings. For example, among infants who had inflammation of the chorionic plate and who had the Low FiO2 respiratory pattern, the prevalence of CLD was 12%.
↵* Stage 3 and severity 3.
↵† Grades 3 and 4.
↵‡ Grades 3, 4 and 5.
CLD, chronic lung disease; EPPD, early and persistent pulmonary dysfunction; FiO2, fraction of inspired oxygen; PD, pulmonary deterioration.