Table 1.

Baseline characteristics of the patients with/without hematuria

	Total	Hematuria	No-hematuria	No. of	P value
	N=397	N=91	N=306	missing values
Age, years	57.7±11.3	59.1±10.8	57.3±11.5	0	0.2
Men, n (%)	249 (63)	65 (60)	184 (71)	0	0.05
BMI, kg/m2	24.1±3.8	24.7±4.0	23.9±3.7	0	0.08
Blood pressure, mm Hg
Systole	135±24	145±27	132±22	0	<0.0001
Diastole	75±13	78±15	75±13	0	0.04
Smoking, n (%)				0	0.4
Never	154 (39)	30 (33)	124 (41)
Past	61 (15)	14 (15)	47 (15)
Current	182 (46)	47 (52)	135 (44)
Diabetic retinopathy, n (%)	175 (45)	58 (65)	117 (39)	10	<0.0001
Laboratory findings
Serum creatinine, mg/dL	0.99 (0.70–1.30)	1.23 (0.80–1.80)	0.90 (0.70–1.20)	0	<0.0001
Serum creatinine, μmol/L	87.5 (61.9–114.9)	108.7 (70.7–159.1)	79.6 (61.9–106.1)	0	<0.0001
eGFR, mL/min/1.73m2	57.6 (39.7–80.8)	45.4 (29.0–65.7)	61.2 (43.4–82.0)	0	<0.0001
Proteinuria, g/day	0.4 (0.2–2.5)	3.1 (0.5–6.8)	0.3 (0.1–1.0)	8	<0.0001
HbA1c, %	8.3±2.4	7.9±2.2	8.4±2.4	36	0.1
HbA1c, mmol/mol	67±26	63±24	68±26	36	0.1
Pathological findings
Glomerular lesion class, n (%)				0	<0.0001
IIa	127 (32)	12 (13)	115 (38)
IIb	148 (37)	25 (27)	123 (40)
III	99 (25)	40 (44)	59 (19)
IV	23 (6)	14 (15)	9 (3)
IFTA score, n (%)				0	<0.0001
0	32 (8)	4 (4)	28 (9)
1	220 (55)	31 (34)	189 (62)
2	66 (17)	22 (24)	44 (14)
3	79 (20)	34 (37)	45 (15)
Arteriolar hyalinosis score, n (%)				0	<0.02
0	55 (14)	7 (8)	48 (16)
1	120 (30)	22 (24)	98 (32)
2	222 (56)	62 (68)	160 (52)
Arteriosclerosis score, n (%)				31	0.9
0	78 (21)	17 (20)	61 (22)
1	123 (34)	30 (36)	93 (33)
2	165 (45)	36 (43)	129 (46)

BMI, body mass index; eGFR, estimated glomerular filtration rate; HbA1c, hemoglobin A1c; IFTA, intestinal fibrosis and tubular atrophy.