Table 4.

Variation of urine albumin results observed in EQAS surveys from different countries.1

EQAS program2NMedian or mean, mg/LCV, %±2 SD range
EQUALIS2002010.816–25
EQUALIS200318.226–37
Labquality1361915.414–25
Labquality136768.963–89
QMP-LS282016.514–26
QMP-LS292210.917–26
QMP-LS28586.950–66
NOKLUS (GP’s offices)10123512.127–44
NOKLUS turbidimetry430206.617–44
NOKLUS turbidimetry424685.261–74
Digital PT383611.328–44
Digital PT37748.461–86
CAP method A, turbidimetry2622510.420–27
CAP method A, turbidimetry207875.179–92
CAP method B, turbidimetry203276.923–29
CAP method B, turbidimetry194833.178–85
CAP method C, turbidimetry162307.126–32
CAP method C, turbidimetry123884.580–92
CAP method D, turbidimetry118265.024–28
CAP method D, turbidimetry86843.878–87
CAP method E, turbidimetry76246.221–25
CAP method E, turbidimetry112874.978–91
CAP method F, turbidimetry962610.121–29
CAP method F, turbidimetry82894.981–94
CAP method G, nephelometry95276.223–28
CAP method G, nephelometry79865.376–90
CAP method H, nephelometry9726723–28
CAP method H, nephelometry69934.584–97
RCPA method A, turbidimetry30368.530–42
RCPA method A, turbidimetry30835.873–93
RCPA method B, nephelometry203510.528–42
RCPA method B, nephelometry20856.274–95