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Table 3 Indicator information added through free-text

From: Exploring the role narrative free-text plays in discrepancies between physician coding and the InterVA regarding determination of malaria as cause of death, in a malaria holo-endemic region

  Representative Sample
N = 493
Physician Malaria Sub-group
N = 1035
Model Malaria Sub-group
N = 332
  counts without free-text added counts1 counts without free-text added counts1 counts without free-text added counts1
  N N (%) N N (%) N N (%)
was death very sudden or unexpected 81 4 (0.8) 204 12 (1.2) 10 2 (0.6)
did s/he drown 0 5 (1.0) .   .  
any poisoning, bite, sting 0 6 (1.2) 0 3 (0.3) 0 8 (2.4)
any headache 86 8 (1.6) 121 21 (2.0) 101 6 (1.8)
any stiff neck 29 1 (0.2) 207 4 (0.4) 13 6 (1.8)
any rigidity/lockjaw 77 4 (0.8) 394 15 (1.4) 43 2 (0.6)
any chest pain 86 3 (0.6) 72 5 (0.5) 53 4 (1.2)
any abdominal pain 105 7 (1.4) 117 25 (2.4) 91 7 (2.1)
any diarrhoea with blood 102 9 (1.8) 222 8 (0.8) 53 4 (1.2)
any abdominal swelling 0 27 (5.5) 0 45 (4.3) 0 38 (11.4)
any yellowness/jaundice 0 27 (5.5) 0 80 (7.7) 0 14 (4.2)
any urinary retention 11 5 (1.0) 14 1 (0.1) 6 3 (0.9)
any swelling of ankles/legs 9 25 (5.1) 8 30 (2.9) 3 29 (8.7)
any skin lesions or ulcers 43 32 (6.5) 42 39 (3.8) 29 33 (9.9)
any rash (non-measles) 23 1 (0.2) 20 1 (0.1) 21 4 (1.2)
any acute fever 215 2 (0.4) 755 13 (1.3) .  
any facial swelling 4 8 (1.6) 1 8 (0.8) 2 7 (2.1)
any anaemia/ paleness 0 13 (2.6) 0 51 (4.9) 0 11 (3.3)
any drowsiness 268 9 (1.8) 526 14 (1.4) 220 6 (1.8)
any diagnosis of heart disease 0 12 (2.4) 0 9 (0.9) 0 19 (5.7)
any surgery just before death 7 (1.4) 6 (1.2) 0 1 (0.1) 0 3 (0.9)
  1. 1added counts = additional number of observations for which indicators were set after incorporation of free-text
  2. All indicators which changed between 0 and 1%: was she pregnant at death; did pregnancy end < 6 weeks; did final illness last < 3 weeks; did final illness last at least 3 weeks; had s/he fallen recently; any obvious recent injury; any convulsions or fits; any diagnosis of epilepsy; was the fontanelle raised; was the fontanelle sunken; paralysis on both sides; any chest indrawing; cough for up to 3 weeks; cough for > 3 weeks; any rapid breathing; any difficulty breathing; any breast lump or lesion; any wheezing; any abdominal mass; any acute diarrhoea; any vomiting; any abnormality of urine; any haematuria; no bilateral swelling of ankle; any measles rash; any excessive water intake; any excessive urination; any persistent fever; any enlarged/swollen glands; was there a comma > 24 hours; any weight loss; any diagnosis of hypertension; any diagnosis of liver disease