Risk factors for developing acute kidney injury in older people with diabetes and community-acquired pneumonia: a population-based UK cohort study

Table 3 Association of pre-existing eGFR and proteinuria with acute kidney injury stratified by age (N = 3471)

	eGFR (mL/min/1.73m ² )	Total	With AKI N (%)	Stratum-specific adjusted ^a OR for acute kidney injury (95%CI)	P -value for interaction ^b
Age 65–79	≤29	102	13 (12.8)	2.90 (1.46–5.77)	0.007
	30–59	586	74 (12.6)	3.29 (2.20–4.94)
	≥60	1038	43 (4.1)	1
	Total	1726	130 (7.5)
Age 80 or above	≤29	178	41 (23)	5.51 (3.28–9.27)
	30–59	901	91 (10.1)	1.96 (1.30–2.96)
	≥60	666	36 (5.4)	1
	Total	1745	168 (9.6)
	Proteinuria	Total	With AKI N (%)	Stratum-specific adjusted ^a OR for acute kidney injury (95%CI)	P -value for interaction ^b
Age 65–79	No	1057	57 (5.4)	1	0.34
	Yes	669	73 (10.9)	1.42 (0.96–2.08)
	Total	1726	130 (7.5)
Age 80 or above	No	1088	89 (8.2)	1
	Yes	657	79 (12)	1.11 (0.79–1.55)
	Total	1745	168 (9.6)

AKI acute kidney injury (%) row percentage eGFR estimated glomerular filtration rate ^aModel 5 in Table 2
OR odds ratio CI confidence interval ^blikelihood ratio test

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