Table 2

Baseline pretreatment characteristics in conventional, umbilical cord serum therapy and amniotic membrane transplantation groups

Conventional management (n=20)Umbilical cord serum (n=17)Amniotic membrane transplantation (n=18)p Value
Age (years)19.6±13.726.4±17.529±15.90.14
Nature of chemical0.94
 Alkali997
 Acid878
 Others313
Grade of chemical injury (Dua's classification16)0.60
 III978
 IV866
 V344
Time between exposure and presentation (days)6.6±2.47.2±3.57±2.90.48