Table 4

Univariable and multivariable HRs for recent era patients (n=599)

Patient factorUnivariable HR (95% CI)Multivariable HR (95% CI)
White (Ref: non-white)0.80 (0.61 to 1.06)0.73 (0.54 to 0.98)
Male (Ref: female)0.95 (0.74 to 1.22)1.04 (0.79 to 1.36)
Deprivation quintile (Ref: most deprived)
 Second most deprived1.44 (1.05 to 1.99)1.63 (1.15 to 2.29)*
 Mid-deprived1.07 (0.71 to 1.61)1.19 (0.78 to 1.82)
 Second least deprived1.30 (0.89 to 1.89)1.54 (1.02 to 2.33)*
 Least deprived1.29 (0.84 to 1.99)1.47 (0.91 to 2.37)
Antenatal diagnosis (Ref: no antenatal diagnosis)1.45 (1.02 to 2.0.6)1.63 (1.12 to 2.38)*
Congenital comorbidity (Ref: no congenital comorbidity)1.34 (0.94 to 1.91)1.31 (0.90 to 1.91)
Prematurity (Ref: full term)1.20 (0.64 to 2.27)1.01 (0.51 to 1.99)
Low weight (Ref: >2.5 kg at primary procedure)1.48 (1.0.9 to 2.02)1.49 (1.05 to 2.11)*
Acquired comorbidity (Ref: no acquired comorbidity)1.97 (1.29 to 3.00)2.04 (1.30 to 3.19)*
Increased severity of illness (Ref: no severity of illness indicator)0.87 (0.63 to 1.22)0.86 (0.61 to 1.22)
  • *Multivariable Cox regression showed that patients in the second most (P=0.005) and second least (P=0.042) deprived Index of Multiple Deprivations (IMD) quintiles, with an antenatal diagnosis (P=0.011), or a low weight (P=0.024) or an acquired comorbidity (P=0.002) at primary procedure had a statistically significant increased HR compared with the reference group.