Table 1.

Clinical manifestations of scrub typhus cases

Clinical characteristics	N (%)			P value
	Total	Coastal	Mountainous inland
Symptoms
Fever	102 (100)	43 (100)	59 (100)	–
Fatigue	73 (71.6)	31 (72.1)	42 (71.2)	0.920*
Anorexia	73 (71.6)	33 (76.7)	40 (67.8)	0.323*
Headache	64 (62.7)	27 (62.8)	37 (62.7)	0.994*
Generalized mylagia	48 (47.1)	21 (48.8)	27 (45.8)	0.759*
Dizziness	44 (43.1)	21 (48.8)	23 (39.0)	0.321*
Chill†	35 (34.3)	21 (48.8)	14 (23.7)	0.008*
Abdominal tenderness	17 (16.7)	9 (20.9)	8 (13.6)	0.324*
Pharyngeal congestion	19 (18.6)	8 (18.6)	11 (18.6)	0.996*
Nausea	13 (12.7)	4 (9.3)	9 (15.3)	0.373*
Vomiting	15 (14.7)	6 (14.0)	9 (15.3)	0.855*
Cough†	14 (13.7)	2 (4.7)	12 (20.3)	0.023*
Conjunctival congestion	8 (7.8)	6 (14.0)	2 (3.4)	0.067‡
Phlegm	3 (2.9)	0 (0.0)	3 (5.1)	0.261‡
Signs
Eschar or skin ulcer†	88 (86.3)	41 (95.3)	47 (79.7)	0.023*
Rash	70 (68.6)	29 (67.4)	41 (69.5)	0.826*
Facial flushing	44 (43.1)	18 (41.9)	26 (44.1)	0.824*
Liver percussion pain†	23 (22.5)	5 (11.6)	18 (30.5)	0.024*
Kidney percussion pain	2 (2.0)	0 (0.0)	2 (3.4)	0.507‡
Lymphadenopathy	27 (26.5)	10 (23.3)	17 (28.8)	0.530*
Hepatomegaly	7 (6.9)	3 (7.0)	4 (6.8)	1.000‡
Splenomegaly	14 (13.7)	9 (20.9)	5 (8.5)	0.071*
Complications†	34 (33.3)	20 (46.5)	14 (23.7)	0.016*

^*χ² test.

^†There was significant difference in characteristics between the two groups (P < 0.05).

^‡Fisher exact test.