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Table 2 Crude likelihood ratios for meningitis for items of clinical history amongst neonates and young infants in the derivative period.

From: Clinical indicators of bacterial meningitis among neonates and young infants in rural Kenya

    First week of life   Age 7 to 59 days
  Sample size   Without meningitis With meningitis Crude LR Samplesize Without meningitis With meningitis Crude LR
Fever 1,031 No 708 7 0.30 1,341 438 5 0.22
   Yes 292 24 2.65   866 62 1.40
Vomiting 787 No 714 24 1.00 1,380 1,212 63 1.02
   Yes 48 1 0.78   101 4 0.78
Anyconvulsions 1,031 No 937 24 0.81 1,380 1,213 42 0.68
   Yes 63 7 3.58   100 25 4. 90
Partial convulsions 1,018 No 984 15 0.92 1,380 1,286 59 0.90
   yes 16 3 6.05   27 8 5.81
Able to breast feed 1,031 No 407 24 1.31 1,372 55 9 1.92
   Yes 593 7 0.56   1,250 58 2.83
Born in hospital 1,031 No 632 25 1.28 1,373 1055 63 1.14
   yes 368 6 0.53   250 5 0.39