Table 1. Demographic characteristics for 302 patients enrolled in a study of rickettsial diseases, northern Vietnam, March 2015–March 2017*.

Characteristic	Value
Age, y, median (IQR), range	50 (36–60), 16–89
Sex
M	158 (52.3)
F	144 (47.7)
Admitted from community	97 (32.1)
Transferred from other hospital or clinic	205 (67.9)
Received antimicrobial drugs before admission	83 (27.5)
Residence in rural area	171 (56.6)
Farmer	127 (42.1)

*Values are no. (%) patients except as indicated. IQR, interquartile range.