From: How does study quality affect the results of a diagnostic meta-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) |