Risk Factors in Outpatients with Dermatitis and Eczema in Tertiary Hospitals of China Who Have Clinically Suspected Bacterial Infection

Table 1

Demographic, clinical characteristics, univariate analysis of bacterial infection, and associated risk factors of 6208 patients with dermatitis and eczema.

Characteristic	Bacterial infection ()	No bacterial infection ()	value
Gender, (%)			0.14
Male	1525 (52.3)	1658 (50.4)
Female	1393 (47.7)	1632 (49.6)
Age, years ()			0.001
Age of onset, years ()			0.003
Course of disease, years ()			<0.0001
Diagnosis, (%)
Atopic dermatitis	507 (17.4)	468 (14.2)	0.0007
Widespread eczema	291 (10.0)	205 (6.2)	<0.0001
Other eczema	2120 (72.6)	2617 (79.6)	<0.0001
Itching, (%)			<0.0001
None	14 (0.5)	116 (3.5)
Mild	244 (8.4)	911 (27.7)
Moderate	2035 (69.7)	1957 (59.5)
Severe	625 (21.4)	306 (9.3)
Lesion distribution, (%)
Cubital fossa	380 (13.0)	281 (8.5)	<0.0001
Popliteal fossa	397 (13.6)	311 (9.5)	<0.0001
Side neck	452 (15.5)	395 (12.0)	<0.0001
Head	442 (15.1)	569 (17.3)	0.02
Face	571 (19.6)	791 (24.0)	<0.0001
Eyelid	138 (4.7)	148 (4.5)	0.67
Ear	226 (7.7)	154 (4.7)	<0.0001
Nape	396 (13.4)	312 (9.5)	<0.0001
Shoulder and back	556 (19.1)	292 (8.9)	<0.0001
Axillary	283 (9.7)	125 (3.8)	<0.0001
Chest	402 (13.8)	296 (9.0)	<0.0001
Abdomen	441 (15.1)	402 (12.2)	0.001
Waist	522 (17.9)	423 (12.9)	<0.0001
Hand	755 (25.9)	881 (26.8)	0.42
Upper limb	803 (27.5)	757 (23.0)	<0.0001
Thigh	859 (29.4)	694 (21.1)	<0.0001
Shank	939 (32.2)	824 (25.0)	<0.0001
Foot	430 (14.7)	273 (8.3)	<0.0001
Buttock	262 (9.0)	205 (6.2)	<0.0001
Pudendum	156 (5.3)	123 (3.7)	0.002
Crissum	97 (3.3)	80 (2.4)	0.04
Medical history, (%)
Asthma	132 (4.5)	73 (2.2)	<0.0001
Allergic rhinitis	423 (14.5)	243 (7.4)	<0.0001
Allergic conjunctivitis	40 (1.4)	21 (0.6)	0.003
Atopic dermatitis	302 (10.3)	71 (2.2)	<0.0001
Dry skin	733 (25.1)	523 (15.9)	<0.0001
Infantile eczema	484 (16.6)	174 (5.3)	<0.0001
Flexion dermatitis	437 (15.0)	170 (5.2)	<0.0001

SD: standard deviation.