Table 2

Tests included/excluded in the regression analysis

Tests included in the regression analysis (number of studies)

Tests for which there were insufficient studies to permit regression analysis (number of studies)


Diagnosis


Dipstick: nitrite (23), LE (14), nitrite or LE positive (15)

Clinical history (6)

Microscopy: pyuria (28), bacteriuria (22)

Dipstick: nitrite and LE positive (9), glucose (4), protein (2), blood (1), protein and LE positive (1), combinations of 3 dipstick tests (5)

Microscopy: pyuria or bacteriuria (8), pyuria and bacteriuria (8)

Culture: standard (1), dipslide (1)

Combinations of different tests (10)


Localisation


Ultrasound (20)

Clinical history (5)

Laboratory based tests (16)

Imaging techniques: MCUG (7), MRI (1), CT (1), IVP (4), cystography (2), scintigraphy (3)


Further investigation


Detection of reflux: Ultrasound (28): standard (11), contrast enhanced (17)

Detection of reflux: IVP (4), voiding radionuclide cystography (3), NAG/creatinine ratio (1), scintigraphy, (3), risk scoring system (1)

Prediction of scarring: ultrasound (2), IVP (1), non-invasive indicators (1), MCUG (2)

Detection of scarring: IVP (4), static scintigraphy (7), dynamic scintigraphy (2), MCUG (4), cystography (1), MRI (1), US and MCUG (1)


Westwood et al. BMC Medical Research Methodology 2005 5:20   doi:10.1186/1471-2288-5-20

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