Table 1 Demographics and clinical features of confirmed and ruled-out cases with SFTSV infection in Eastern China, 2010–2015.

From: Increased Prevalence of Severe Fever with Thrombocytopenia Syndrome in Eastern China Clustered with Multiple Genotypes and Reasserted Virus during 2010–2015

Characteristics

All Clinical SFTS Cases

P value

Confirmed SFTS Cases

P value

Confirmed SFTS Cases (N = 286)

Ruled-out Cases (N = 324)

Fatal (N = 46)

Not-Fatal (N = 240)

Demographics No. (%)

Age (years)

 <30

2(0.7)

24(7.4)

<0.001

0(0)

2(0.8)

0.53

 30–60

135(47.2)

193(59.6)

0.002

8(17.4)

127(52.9)

<0.001

 >60

149(52.1)

107(33.0)

<0.001

38(82.6)

111(46.3)

<0.001

Sex

 Male

142(49.6)

169(52.2)

0.54

22(47.8)

122(50.8)

0.71

 Female

144(50.4)

155(47.8)

0.54

24(52.2)

120(49.2)

0.79

Marital status

 Married

236(82.5)

260(80.2)

0.47

40(87.0)

196(81.7)

0.39

 Not married

50(17.5)

64(19.8)

0.47

6(13.0)

44(18.3)

0.39

Occupation

 Farming

253(88.5)

212(65.4)

<0.001

42(91.3)

211(87.9)

0.51

 Non-farming

33(11.5)

112(34.6)

<0.001

4(8.7)

29(12.1)

0.51

 Tick bites

75(26.2)

26(8.0)

<0.001

10(21.7)

65(27.1)

0.45

Clinical features No. (%)

Fever

286(100.0)

324(100.0)

46(100)

240(100)

Chilly

165(57.7)

162(50.0)

0.07

35(54.3)

130(54.2)

0.42

Fatigue

136(47.6)

130(40.1)

0.08

23(50.0)

113(47.1)

0.87

Headache

143(50.0)

149(46.0)

0.32

28(60.9)

115(47.9)

0.11

Myalgia

168(58.7)

187(57.7)

0.88

29(63.0)

139(57.9)

0.74

Nephralgia

28(9.8)

33(10.2)

0.87

6(13.0)

22(9.2)

0.42

Lymphadenopathy

61(21.3)

20(6.2)

<0.001

10(21.7)

51(21.3)

0.83

Anorexia

232(81.1)

268(82.7)

0.61

43(93.5)

209(78.8)

0.22

Nausea

198(69.2)

201(62.0)

0.06

31(67.4)

167(69.6)

0.77

Vomiting

122(42.7)

136(42.0)

0.86

22(47.8)

100(41.7)

0.44

Abdominal pain

78(27.2)

92(28.4)

0.76

14(30.4)

64(26.7)

0.86

Abdominal distension

65(22.7)

76(23.5)

0.80

12(26.1)

53(22.1)

0.55

Diarrhea

155(54.2)

109(33.6)

<0.001

26(56.5)

129(53.8)

0.73

Conjunctival congestion

43(15.0)

19(6.6)

<0.001

30(65.2)

13(5.4)

<0.001

Skin petechiae

56(19.6)

41(12.7)

0.02

31(67.4)

25(10.4)

<0.001

Gum bleed

49(17.1)

31(9.6)

0.01

31(67.4)

18(7.5)

<0.001

Haematemesis

36(12.6)

21(6.3)

0.01

27(58.7)

19(7.9)

<0.001

Leukopenia

216(75.5)

56(17.3)

<0.001

41(89.1)

175(72.9)

0.02

Thrombocytopenia

191(66.8)

126(38.9)

<0.001

45(97.8)

146(60.8)

<0.001