age-adjusted_ESR_CRP_for_RA v.1

The tool to calculate age-adjusted ESR and CRP in adult patients with Rheumatoid Arthritis (RA). The calculation formula is as follow: For male: ESR upper limit of normal, mm/hr = age / 2 CRP upper limit of normal, mg/dL = age / 50 For female: ESR upper limit of normal, mm/hr = (age + 10) / 2 CRP upper limit of normal, mg/dL = (age / 50) + 0.6

Winner Ng

dokter.winner@gmail.com

@CambioCDS

To provide the age-adjusted normal upper limit value of ESR and CRP for adult patients with RA.

To be used in adult patients diagnosed with RA.

Not to be used on patients outside the age range of 21 - 78 years of age.

Ranganath VK, Elashoff DA, Khanna D, et al. Age adjustment corrects for apparent differences in erythrocyte sedimentation rate and C-reactive protein values at the onset of seropositive rheumatoid arthritis in younger and older patients. J Rheumatol. 2005;32(6):1040-2.

OBSERVATION.basic_demographic.v1, OBSERVATION.age_adjusted_esr_crp_for_rheumatoid_arthritis.v0