Risk factors associated with disease progression and mortality in chronic kidney disease of uncertain etiology: a cohort study in Medawachchiya, Sri Lanka

Table 5 Sex-stratified, age-adjusted univariate and multivariate Cox proportional models of disease progression for stage-specific analysis

CKDu	Type of analysis	Variable	Hazard ratio	95% Confidence interval	p value
Stage 1	Sex-stratified, age-adjusted univariate analysis	Hypertension	7.29	1.16–45.81	0.034
Stage 1	Sex-stratified, age-adjusted univariate analysis	Family history	21.63	0.44–1063.31	0.120
Stage 2–3	Sex-stratified, age-adjusted univariate analysis	Hypertension	3.07	0.95–9.92	0.060
		BMI	0.85	0.72–1.00	0.070
		Malaria	0.26	0.08–0.85	0.027
	Sex-stratified, age-adjusted multivariate (hypertension, BMI, malaria) analysis	Hypertension	26.14	3.04–224.77	0.003
		BMI	0.64	0.45–0.91	0.011
		Malaria	0.27	0.06–1.22	0.083

BMI body mass index (kg/m²), CKDu chronic kidney disease of uncertain etiology

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