Table 4.

Results of Logistic Regression Analysis Identifying Independent Factors Associated with the Active User Group.

Question		Answer	Reference group	p Value	Exp(B)	95 % CI
Specialty	Cardiology	Yes	No	0.03	1.84	[1.06-3.19]
	Rheumatology	Yes	No	0.042	0.28	[0.08-0.96]
	Allergy	Yes	No	0.005	6.13	[1.74-21.56]
Q2	Use of serum cystatin C level to evaluate kidney function	Yes	No	0.011	2.05	[1.18-3.60]
Q3	Diagnosis of CKD by both urine test and eGFR level	By both urine test and eGFR level	Only by urine test	0.042	15.55	[1.11-218.96]
	Diagnosis by urine test, eGFR level, and kidney imaging	By urine test, eGFR level, and kidney imaging examination	Only by urine test	0.01	34.80	[2.30-527.49]
Q5	Occasional quantitative testing for albuminuria	Occasional check quantitative tests for albuminuria	No quantitative testing	0.031	1.67	[1.05-2.67]
	Frequent quantitative testing for albuminuria	Frequent check of quantitative tests for albuminuria	No quantitative testing	0.039	1.96	[1.04-3.71]
Q9	Estimation of daily salt intake by 24-h urine collection	Yes	No	0.001	0.04	[0.006-0.23]
Q10	Use of hemoglobin level to evaluate renal anemia	Yes	No	0.017	4.52	[1.31-15.66]
	Use of transferrin saturation (TSAT) to evaluate renal anemia	Yes	No	0.038	1.72	[1.03-2.87]
Q12	Prescribes HIF-PH inhibitors at their own discretion	To prescribe HIF-PH inhibitors with my own discretion	Does not prescribe HIF-PH inhibitors	0.003	2.10	[1.28-3.45]
Q19	Provides dietary therapy for patients with CKD	To provide dietary therapy at my clinics/hospitals	Does not provide dietary therapy	0.003	2.56	[1.37-4.76]
Q25	Refers patients with evident proteinuria (> 0.5 g/gCr) to nephrologists	Yes	No	0.017	0.57	[0.36-0.90]
	Refers patients with both proteinuria and hematuria to nephrologists	Yes	No	0.002	2.03	[1.29-3.19]
Q27	Consults nephrologists for proteinuria > 1.0 g/gCr or (2+) by qualitative test	>1.0g/gCr or (2+) by qualitative proteinuria test	> 0.15 g/gCr or (±) by qualitative test	0.016	2.62	[1.19-5.75]

BP: blood pressure; CI: confidence interval; CKD: chronic kidney disease; eGFR: estimated glomerular filtration rate; HIF-PH: hypoxia-inducible factor prolyl hydroxylase; Q: question.