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Figure 9.3 Top 10 investigations ordered in private clinics in 2012 Figure 9.2 Top 10 investigations ordered in public clinics in 2012
1.9 3.3
4.0 4.8
5.0 5.8
7.8 8.2
9.2 12.2
2 4
6 8
10 12
14 Electrocardiogram
Test;urine;albumin Test;urine
Test;HbA1c Test;liver functions
Test;full blood count Test;lipids profile
Test;renal function Ultrasound;obstetrics
Test;glucose glucose tolerance
Rate per 100 encounters
0.4 0.4
0.5 0.6
0.6 0.9
2.0 2.2
2.6 3.6
2 4
6 8
10 12
14 Electrocardiogram
Test;HbA1c Test;urine;pregnancy
Test;renal function Test;lipids profile
Ultrasound;obstetric Test;blood
X-ray;chest Test;glucose tolerance
Test;urine
Rate per 100 encounters
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9.4 DIAGNOSES WITH INVESTIGATIONS ORDERED
Table 9.2 shows the top 20 diagnoses for which investigations were ordered. ,QYHVWLJDWLRQZDVSDUWRIWKHPDQDJHPHQWSURFHVVIRURIDOOGLDJQRVHVUHSRUWHGLQ106
at a rate of 23.0 per 100 encounters. 7KHWRSGLDJQRVHVOLVWHGLQ7DEOHDFFRXQWHGIRURIGLDJQRVHVIRUZKLFKLQYHVWLJDWLRQV
were ordered. LDEHWHVZDVWKHPRVWFRPPRQGLDJQRVLVIRUZKLFKLQYHVWLJDWLRQZDVRUGHUHG7KLVFRUUHVSRQGV
with the leading investigations ordered, which was glucose blood test see Section 9.2 and Section 9.3. Nearly half of all diabetes cases were accompanied with investigation test.
0DMRULW\RISUHJQDQF\FDVHVZHUHDFFRPSDQLHGZLWKGLDJQRVWLFLQYHVWLJDWLRQVDQGPRVWRIWKHPZHUH XULQHWHVWWRFRQÀUPSUHJQDQF\
Table 9.2: Top 10 diagnoses for which investigation was most frequently ordered in primary care clinics in 2012
Diagnosis Number
Percentage
a
Rate per 100 encounters
n = 141,593 95 CI
Rate per 100
contacts
b
LCL UCL
Diabetes - all 6,515
20.0 4.60
4.49 4.71
49.3 Hypertension - all
3,910 12.0
2.76 2.68
2.85 20.3
Medical examination - pregnancy
3,745 11.5
2.65 2.56
2.73 68.7
Medical examination - general
3,050 9.4
2.16 2.08
2.23 58.4
Lipid disorder 2,549
7.8 1.80
1.73 1.87
21.7 Cystitisurinary infection
1,297 4.0
0.92 0.87
0.97 62.8
Anaemia - all 1,146
3.5 0.81
0.76 0.86
57.3 Upper respiratory
infection, acute 739
2.3 0.52
0.49 0.56
2.3 Perinatal morbidity
487 1.5
0.35 0.31
0.38 72.3
Pregnancy 416
1.3 0.30
0.27 0.32
84.4
Subtotal 23,855
73.2 16.85
16.65 17.04
- Total
32,570 100.0
23.00 22.78
23.22 -
a Percentage of all diagnoses with investigations b Percentage of total contacts with the diagnosis that generated at least one order of investigation
Multiple ICPC-2 codes see Appendix 2 Note: perinatal morbidity = neonatal jaundice
