| Association of CKD categories with the composite outcome among participants in the NewKI study. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Category | Median follow-up (years) | PYs | N | n | IR | Crude model | Age & Sex adjusted | Multivariable model * | |||
| Existing CKD | 2.18 | 602 | 257 | 177 | 294 | 1.00 | (Reference) | 1.00 | (Reference) | 1.00 | (Reference) |
| Screen-detected CKD | 1.88 | 361 | 185 | 120 | 332.6 | 1.10 | (0.87 to 1.38) | 1.15 | (0.91 to 1.46) | 1.04 | (0.76 to 1.42) |
| Transient eGFR reduction | 1.24 | 750 | 450 | 218 | 290.8 | 0.94 | (0.77 to 1.15) | 1.01 | (0.83 to 1.23) | 0.99 | (0.73 to 1.35) |
a Multivariable model was adjusted for age, sex, smoking status, and medical history of diabetes, hypertension, ischaemic heart disease, heart failure, other cardiovascular disease, estimated glomerular filtration rate, and urine albumin-to-creatinine ratio. CKD = chronic kidney disease. IR = incidence rate, per 1000 person–years (that is, the quotient of number of composite outcome cases by the sum of follow-up time at risk). HR = hazard ratio. N = number of participants in the category. n = number of composite outcome cases in the category. PYs = sum of follow-up time at risk in years for all participants in the category.