TABLE 3.4Summary of abnormal preoperative haemoglobin, haematocrit and FBC tests, changes in clinical management or postoperative complications in study populations according to age group

AGE GROUP% ABNORMAL TEST (Number of Studies)% CHANGE IN CLINICAL MANAGEMENT (Number of Studies)% POSTOPERATIVE COMPLICATIONS (Number of Studies)
Mean*MaximumMinimumMean*MaximumMinimumMean*MaximumMinimum
Haemoglobin and haemotocrit
Adults > 60 years6.1 (2)6.93.40 (1)(0)
Adults only22.1 (2)32.20.74.5 (2)6.50.20.2 (1)
Children & adults0.4 (1)0 (1)(0)
Children only3.9 (9)17.60.50.2 (8)2.700 (3)00
Not stated2.3 (3)3.30.40.3 (2)0.60.11.1 (1)
Platelet count
Adults > 60 years6.9 (1)0 (1)(0)
Adults only0.6 (2)2.800.1 (2)0.300 (1)
Children & adults0.8 (5)14.800 (2)000 (2)00
Children only0.06 (1)0 (1)3.0 (1)
Not stated1.6 (8)28.400 (3)0.200.2 (5)2.70
White blood cell count
Adult > 60 years(0)(0)(0)
Adults only0.1 (1)0 (1)0 (1)
Children & adults0.4 (1)0 (1)(0)
Children only17.5 (1)1.3 (1)(0)
Not stated2.6 (2)34.80.95.2 (1)0.6 (1)
*

weighted means

From: Appendix 1, Results of a Systematic Review of the Literature for Routine Preoperative Testing

Cover of Preoperative Tests
Preoperative Tests: The Use of Routine Preoperative Tests for Elective Surgery.
NICE Clinical Guidelines, No. 3.
National Collaborating Centre for Acute Care (UK).
Copyright © 2003, National Collaborating Centre for Acute Care.

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