Skip to main content

Table 2 Differentials in time to blood transfusion

From: Determinants and time to blood transfusion among thermal burn patients admitted to Mulago Hospital

Variable Frequency Log rank χ2 p value
By pre-injury related factors
Sex of the child
 Male 75 2.32 0.1274
 Female 37
Age group
 <5 66 0.18 0.6695
 5–12 10
 >12 36
Body mass index (18.5–25 kg/m2)
 Above normal 19 11.68 0.1115
 Normal 59
 Below normal 34
Pre-existing illness
 Non 93 4.16 0.3849
 Any blood disorders 2
 Respiratory disease 7
 Epilepsy 6
 Others 4
By injury related factors
Degree/depth of burns
 Partial superficial 99 1.07 0.7832
 Partial deep 4
 3rd degree 2
 Mixed 7
Inhalation injury
 Absent 28 8.85 0.0029
 Present 84
Percentage of TBSA
 Less than 20 62 11.37 0.0007
 20 and above 50
Cause of burn
 Scalds 74 12.04 0.0024
 Flame 37
 Contact 1
Severity of the burns
 Minor 1 8.01 0.018
 Moderate 29
 Major 82
Baseline WBC count at admission
 Normal 63 1.13 0.2874
 Abnormal 48
Baseline Hb count admission
 11–10 16 1.78 0.6189
 8–9.9 32
 6.7.9 2
 >11 62
By post injury factors
Surgical procedures performed
 Yes 13 6.56 0.0104
 No 99
Ward
 ICU 26 22.58 0.0000
 Holland 86
Abnormal WBC count during admission
 Yes 63 1.86 0.1729
 No 48
Focus of infection
 Yes 49 3.02 0.0821
 No 63
Lowest haemoglobin level
 Yes 62 5.11 0.0238
 No 43
Lowest serum
 Normal (3.5–4.9) 24 12.92 0.0048
 >2.9–3.5 23
 2.5–2.9 15
  1. Univariate analysis for influence on tie to transfusion. Categorized as pre-injury, injury and post-injury factors in this table, we found that
  2. Sex, body mass index (BMI) and pre-existing illnesses had significant association with blood transfusion. However, there was no association between patient age group and blood transfusion
  3. We observed a significant association of blood transfusion with inhalation injury, percentage of TBSA, cause of burn and baseline WBC count. However, there was no association with baseline HB level, body part injures or depth of the burns
  4. All the post injury variables had significant association with time to blood transfusion (surgical procedures performed, ward unit on which patient is admitted, WBC count during admission, focus of infection, low haemoglobin level during admission, lowest Serum albumin during admission) (p < 0.05) except for weather the patient was a primary or secondary referral to Mulago