### Abstract

Estimation of Glomerular filtration rate (GFR) is crucial for the detection of renal insufficiency. In clinical practice, GFR is generally estimated from Ccr by some prediction formulas including the serum creatinine concentration and some variables: age, sex, body size. It has been suggested that serum cystatin C is less influenced by sex, body size, muscular mass or inflammation. In several studies, serum cystatin C performed better than serum creatinine did as a marker to detect GFR reduction. We developed the formula for predicting creatinine clearance (Ccr) from serum cystatin C, serum creatinine and serum beta 2-microgroburin by multiple regression analysis. In this study, we analysed 24-hour Ccr and variables (sex, age and BMI) in 82 subjects with renal diseases to develop suitable formulas. Our serum cystatin C formula is as follows: Ccr (ml/min/1.73m2) = (12.14-0.03 x age-1.72 x serum cystatin C) 2. Correlation between measured 24-hour Ccr and predicted Ccr by our serum cystatin C formula was higher (r=0.852) than our serum creatinine formula (r=0.755), serum beta 2-microgroburin formula (r=0.793), Cockcroft-Gault formula (r=0.836) and Horio formula (r=0.825). Accuracy within 15% was higher (39.0%) than other formulas (25.6-30.5%). Our formula using serum cystatin C for predicting Ccr is a useful and precise marker for Ccr than other commonly used formulas using serum creatinine.

Original language | English |
---|---|

Pages (from-to) | 1093-1099 |

Number of pages | 7 |

Journal | Rinsho byori. The Japanese journal of clinical pathology |

Volume | 56 |

Issue number | 12 |

Publication status | Published - 2008 Dec |

Externally published | Yes |

### Fingerprint

### ASJC Scopus subject areas

- Medicine(all)

### Cite this

*Rinsho byori. The Japanese journal of clinical pathology*,

*56*(12), 1093-1099.

**Usefulness of the formula for predicting creatinine clearance from serum cystatin C.** / Oyabu, Chinami; Hayashi, Nobuhide; Sugiyama, Daisuke; Umezu, Michio; Kinoshita, Shouhiro; Hayashi, Hiroki; Kawano, Seiji; Kumagai, Shunichi.

Research output: Contribution to journal › Article

*Rinsho byori. The Japanese journal of clinical pathology*, vol. 56, no. 12, pp. 1093-1099.

}

TY - JOUR

T1 - Usefulness of the formula for predicting creatinine clearance from serum cystatin C

AU - Oyabu, Chinami

AU - Hayashi, Nobuhide

AU - Sugiyama, Daisuke

AU - Umezu, Michio

AU - Kinoshita, Shouhiro

AU - Hayashi, Hiroki

AU - Kawano, Seiji

AU - Kumagai, Shunichi

PY - 2008/12

Y1 - 2008/12

N2 - Estimation of Glomerular filtration rate (GFR) is crucial for the detection of renal insufficiency. In clinical practice, GFR is generally estimated from Ccr by some prediction formulas including the serum creatinine concentration and some variables: age, sex, body size. It has been suggested that serum cystatin C is less influenced by sex, body size, muscular mass or inflammation. In several studies, serum cystatin C performed better than serum creatinine did as a marker to detect GFR reduction. We developed the formula for predicting creatinine clearance (Ccr) from serum cystatin C, serum creatinine and serum beta 2-microgroburin by multiple regression analysis. In this study, we analysed 24-hour Ccr and variables (sex, age and BMI) in 82 subjects with renal diseases to develop suitable formulas. Our serum cystatin C formula is as follows: Ccr (ml/min/1.73m2) = (12.14-0.03 x age-1.72 x serum cystatin C) 2. Correlation between measured 24-hour Ccr and predicted Ccr by our serum cystatin C formula was higher (r=0.852) than our serum creatinine formula (r=0.755), serum beta 2-microgroburin formula (r=0.793), Cockcroft-Gault formula (r=0.836) and Horio formula (r=0.825). Accuracy within 15% was higher (39.0%) than other formulas (25.6-30.5%). Our formula using serum cystatin C for predicting Ccr is a useful and precise marker for Ccr than other commonly used formulas using serum creatinine.

AB - Estimation of Glomerular filtration rate (GFR) is crucial for the detection of renal insufficiency. In clinical practice, GFR is generally estimated from Ccr by some prediction formulas including the serum creatinine concentration and some variables: age, sex, body size. It has been suggested that serum cystatin C is less influenced by sex, body size, muscular mass or inflammation. In several studies, serum cystatin C performed better than serum creatinine did as a marker to detect GFR reduction. We developed the formula for predicting creatinine clearance (Ccr) from serum cystatin C, serum creatinine and serum beta 2-microgroburin by multiple regression analysis. In this study, we analysed 24-hour Ccr and variables (sex, age and BMI) in 82 subjects with renal diseases to develop suitable formulas. Our serum cystatin C formula is as follows: Ccr (ml/min/1.73m2) = (12.14-0.03 x age-1.72 x serum cystatin C) 2. Correlation between measured 24-hour Ccr and predicted Ccr by our serum cystatin C formula was higher (r=0.852) than our serum creatinine formula (r=0.755), serum beta 2-microgroburin formula (r=0.793), Cockcroft-Gault formula (r=0.836) and Horio formula (r=0.825). Accuracy within 15% was higher (39.0%) than other formulas (25.6-30.5%). Our formula using serum cystatin C for predicting Ccr is a useful and precise marker for Ccr than other commonly used formulas using serum creatinine.

UR - http://www.scopus.com/inward/record.url?scp=63149086148&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63149086148&partnerID=8YFLogxK

M3 - Article

C2 - 19175073

AN - SCOPUS:63149086148

VL - 56

SP - 1093

EP - 1099

JO - Rinsho byori. The Japanese journal of clinical pathology

JF - Rinsho byori. The Japanese journal of clinical pathology

SN - 0047-1860

IS - 12

ER -