Table 5.

Multivariable analysis

	Scrub typhus		Murine typhus		Spotted fever
	Risk ratio	95% CI	Risk ratio	95% CI	Risk ratio	95% CI
Gender
Male	Ref	–	Ref	–	Ref	–
Female	1.1	0.9–1.4	1.8	0.9–2.9	0.9	0.6–1.1
Age (per 10-year increase)	1.21	1.10–1.32	1.07	0.89–1.29	0.98	0.87–1.11
Geography
Urban	Ref	–	Ref	–	Ref	–
Rural	1.3	0.8–2.0	1.4	0.8–2.7	1.4	0.6–3.2
Peri-forested	0.7	0.4–1.3	0.0	0.0	1.3	0.5–3.3
Educational level
None	Ref	–	Ref	–	Ref	–
Primary	1.5	1.1–2.1	1.4	0.7–3.0	1.1	0.7–1.7
Middle	1.0	0.6–1.6	0.8	0.4–1.7	0.6	0.4–0.9
High school	1.1	0.7–1.6	1.1	0.5–2.2	0.5	0.3–1.0
Graduate	0.8	0.4–1.4	0.8	0.2–2.7	0.1	0.0–0.5
Agricultural work
No	Ref	–	–	–	Ref	–
Yes	1.5	1.1–2.1	–	–	1.9	1.2–2.9
Owns cows
No	Ref	–	–	–	Ref	–
Yes	1.1	0.8–1.6	–	–	1.0	0.7–1.3
Owns poultry
No	Ref	–	Ref	–	Ref	–
Yes	1.1	0.8–1.6	1.1	0.7–1.7	1.3	0.7–2.4
Owns goats
No	–	–	–	–	Ref
Yes	–	–	–	–	1.3	0.9–1.9
Pet dog
No	–	–	Ref	–	–	–
Yes	–	–	2.0	0.8–4.8	–	–
Cuts grass for fodder
No	–	–	–	–	Ref	–
Yes	–	–	–	–	0.8	0.5–1.3
Collects firewood
No	–	–	–	–	Ref	–
Yes					1.0	0.7–1.3
Owns vegetable patch
No	–	–	–	–	Ref	–
Yes	–	–	–	–	1.0	0.5–2.0
Forest within 300 m
No	–	–	–	–	Ref	–
Yes	–	–	–	–	2.1	1.3–3.3
Lake/pond within 300 m
No	–	–	Ref	–	–	–
Yes		–	2.2	0.9–5.3	–	–
House yard has cement floor	–
No	–	–	Ref	–	–	–
Yes	–	–	0.5	0.2–1.1	–	–

Values in bold indicate P values < 0.05.