Skip to main content

Table 1 Demographic characteristics of the transfusion and non-transfusion groups

From: Blood transfusion risk prediction in spinal tuberculosis surgery: development and assessment of a novel predictive nomogram

Demographic characteristics

Transfusion group(n = 167)

Non-transfusion group(n = 328)

Total(n = 495)

Gendera

 Male

80 (47.90%)

217 (66.16%)

297 (60.00%)

 Female

87 (52.10%)

111 (33.84%)

198 (40.00%)

Course of disease(month)a

 ≦6

106 (63.47%)

238 (72.56%)

344 (69.49%)

 > 6

61 (36.53%)

90 (27.44%)

151 (30.51%)

marriage

 Yes

145 (86.83%)

272 (82.93%)

417 (84.24%)

 No

22 (13.17%)

56 (17.07%)

78 (15.76%)

Systolic blood pressure(mmHg)

 ≦120

62 (37.13%)

136 (41.46%)

198 (40.00%)

 > 120

105 (62.87%)

192 (58.54%)

297 (60.00%)

Diastolic blood pressure(mmHg)

 ≦80

95 (56.89%)

192 (58.54%)

287 (57.98%)

 > 80

72 (43.11%)

136 (41.46%)

208 (42.02%)

BMI(kg/m2)a

 < 18.5

48 (28.74%)

85 (25.91%)

133 (26.87%)

 18.5 ~ 24.9

107 (64.07%)

206 (62.80%)

313 (63.23%)

 > 25

12 (7.19%)

37 (11.28%)

49 (9.90%)

Paina

 Yes

164 (98.20%)

305 (92.99%)

469 (94.75%)

 No

3 (1.80%)

23 (7.01%)

26 (5.25%)

Lower limb pain

 Yes

95 (56.89%)

170 (51.83%)

265 (53.54%)

 No

72 (43.11%)

158 (48.17%)

230,946.46%)

Number of lower limb pain

 0

71 (42.51%)

158 (48.17%)

229 (46.26%)

 1

18 (10.78%)

57 (17.38%)

75 (15.15%)

 2

78 (46.71%)

113 (34.45%)

191 (38.59%)

Fatigue

 Yes

52 (31.14%)

98 (29.88%)

150 (30.30%)

 No

115 (68.86%)

230 (70.12%)

345 (69.70%)

Fever

 Yes

55 (32.93%)

88 (26.83%)

143 (28.89%)

 No

112 (67.07%)

240 (73.17%)

352 (71.11%)

Night sweatsa

 Yes

47 (28.14%)

72 (21.95%)

119 (24.04%)

 No

120 (71.86%)

256 (78.05%)

376 (75.96%)

Appetitea

 Yes

89 (53.29%)

215 (65.55%)

304 (61.41%)

 No

78 (46.71%)

113 (34.45%)

191 (38.59%)

Weight loss

 Yes

73 (43.71%)

117 (35.67%)

190 (38.38%)

 No

94 (56.29%)

211 (64.33%)

305 (61.62%)

Surgical approach

 Anterior

99 (59.28%)

190 (57.93%)

289 (58.38%)

 Posterior

63 (37.73%)

130 (39.63%)

193 (38.99%)

 Anteroposterior

5 (2.99%)

8 (2.44%)

13 (2.63%)

Focal segmentala

 ≦2

124 (74.25%)

273 (83.23%)

397 (80.20%)

 > 3

43 (25.75%)

55 (16.77%)

98 (19.80%)

Intervertebral fusion device

 Yes

82 (49.10%)

147 (44.82%)

229 (46.26%)

 No

85 (50.90%)

181 (55.18%)

266 (53.74%)

Internal fixationa

 Yes

158 (94.61%)

281 (85.67%)

439 (88.69%)

 No

9 (5.39%)

47 (14.33%)

56 (11.31%)

ODIa

 ≦18

87 (52.10%)

206 (62.80%)

293 (59.19%)

 > 18

80 (47.90%)

122 (37.20%)

202 (40.81%)

JOA

 ≦20

106 (63.47%)

190 (57.93%)

296 (59.80%)

 > 20

61 (36.53%)

138 (42.07%)

199 (40.20%)

VAS

 ≦7

83 (49.70%)

167 (50.91%)

250 (50.51%)

 > 7

84 (50.30%)

161 (49.09%)

245 (49.49%)

ASIA

 Unimpaired

100 (59.88%)

219 (66.77%)

319 (64.44%)

 Impaired

67 (40.12%)

109 (33.23%)

176 (35.56%)

Age(year)a

 < 60

85 (50.90%)

236 (71.95%)

321 (64.85%)

 ≥60

82 (49.10%)

92 (8.05%)

174 (35.15%)

Occupationa

 Farmer

109 (65.27%)

191 (58.23%)

300 (60.61%)

 Not farmer

58 (34.73%)

137 (41.77%)

195 (39.39%)

Race

 Han

77 (46.11%)

167 (50.91%)

244 (49.29%)

 non-Han

90 (53.89%)

161 (49.09%)

251 (50,71%)

Hospitalization days(day)a

 ≦11

76 (45.51%)

224 (68.29%)

300 (60.61%)

 > 11

91 (54.49%)

104 (31.71%)

195 (39.39%)

Surgery classificationa

 Grade 4

108 (64.67%)

187 (57.01%)

295 (59.60%)

 Grade 1–3

59 (35.33%)

141 (42.99%)

200 (40.40%)

Preoperative hospitalization days(day)a

 ≦4

81 (48.50%)

216 (65.85%)

297 (60.00%)

 > 4

86 (51.5%)

112 (34.15%)

198 (40.00%)

Medical insurance

 NCMS

88 (52.69%)

174 (53.05%)

262 (52.93%)

 Non- NCMS

79 (47.31%)

154 (46.95%)

233 (47.07%)

Blood glucose(mmol/L)a

 3.9 ~ 6.1

138 (82.63%)

252 (76.83%

390 (78.79%)

 < 3.9 or > 6.1

29 (17.37%)

76 (23.17%)

105 (21.21%)

Blood type

 A

37 (22.16%)

62 (18.90%)

99 (20.00%)

 B

46 (27.54%)

89 (27.113%

135 (27.27%)

 AB

7 (4.19%)

24 (7.32%)

31 (6.26%)

 O

77 (46.11%)

153 (46.65%)

230 (46.46%)

C-reactive protein(mg/L)

 ≦10

65 (38.92%)

148 (45.12%)

213 (43.03%)

 > 10

102 (61.08%)

180 (54.88%)

282 (56.79%)

Hepatitis B surface antigen

 Positive

14 (8.38%)

32 (9.76%)

46 (9.29%)

 Negative

153 (91.62%)

296 (90.24%)

449 (90.71%)

White blood cells(a109/L)a

 4 ~ 10

141 (84.43%)

264 (80.49%)

405 (81.82%)

 < 4 or > 10

26 (15.57%)

64 (19.51%)

90 (18.18%)

Hemoglobin(g/L)a

 < 120

108 (64.67%)

206 (62.80%)

314 (63.43%)

 ≥120

59 (35.33%)

122 (37.20%)

181 (36.57%)

Platelets(a109/L)

 100–300

92 (55.09%)

178 (54.27%)

270 (54.55%)

 < 100 or > 300

75 (44.91%)

150 (45.73%)

225 (45.45%)

Percentage of neutrophils(%)

 0.5–0.7

96 (57.49%)

196 (59.76%)

292 (58.99%)

 < 0.5 or > 0.7

71 (42.51%)

132 (40.24%)

203 (41.01%)

Percentage of lymphocytes(%)a

 0.2–0.4

80 (47.90%)

193 (58.84%)

273 (55.15%)

 < 0.2 or > 0.4

87 (52.10%)

135 (41.16%)

222 (44.85%)

Absolute monocytes(a109/L)

 0.12–0.8

134 (80.24%)

257 (78.35%)

391 (78.99%)

 < 0.12 or > 0.8

33 (19.76%)

71 (21.65%)

104 (21.01%)

Percentage of monocytes(%)

 0.03–0.08

63 (37.72%)

125 (38.11%)

188 (37.98%)

 < 0.03 or > 0.08

104 (62.28%)

203 (61.89%)

307 (62.02%)

Total bilirubin(umol/L)

 3.4–17.1

140 (83.83%)

279 (85.06%)

419 (84.65%)

 < 3.4 or > 17.1

27 (16.17%)

49 (14.94%)

76 (15.35%)

Direct bilirubin(umol/L)

 ≦6.8

149 (89.22%)

306 (93.29%)

455 (91.92%)

 > 6.8

18 (10.78%)

22 (6.17%)

40 (8.08%)

Indirect bilirubin(umol/L)

 1.7–10.2

139 (83.23%)

283 (86.28%)

422 (85.25%)

 < 1.7 or > 10.2

28 (16.77%)

45 (13.72%)

73 (14.75%)

Total protein(g/L)

 60–80

135 (80.84%)

271 (82.62%)

406 (82.02%)

 < 60 or > 80

32 (19.16%)

57 (17.38%)

89 (17.98%)

Albumin(g/L)a

 ≥40

36 (21.56%)

125 (38.11%)

161 (32.53%)

 < 40

131 (78.44%)

203 (61.89%)

334 (67.47%)

Aspartate aminotransferase(U/L)

 10–40

146 (87.43%)

290 (88.41%)

436 (88.08%)

 < 10 or > 40

21 (12.57%)

38 (11.59%)

59 (11.92%)

Alanine aminotransferase(U/L)

 10–40

118 (70.66%)

242 (73.78%)

360 (72.73%)

 < 10 or > 40

49 (29.34%)

86 (26.22%)

135 (27.27%)

AST/ALTa

 ≦1

125 (74.85%)

128 (39.02%)

253 (51.11%)

 > 1

42 (25.15%)

200 (60.98%)

242 (48.89%)

Blood urea(mmol/L)a

 3.2–7.1

129 (77.25%)

226 (68.90%)

355 (71.72%)

 < 3.2 or > 7.1

38 (22.75%)

102 (31.10%)

140 (28.28%)

Blood creatinine(umol/L)

 76–88.41

29 (17.37%)

63 (19.21%)

92 (18.59%)

 < 76 or > 88.41

138 (82.63%)

265 (80.79%)

403 (84.41%)

Blood uric acid(umol/L)a

 208–428

82 (49.10%)

179 (54.57%)

261 (52.73%)

 < 208 or > 428

85 (50.90%)

149 (45.43%)

234 (47.27%)

Erythrocyte sedimentation rate(mm/h)

 ≦20

39 (23.35%)

103 (31.40%)

142 (28.69%)

 > 20

128 (76.65%)

225 (68.60%)

353 (71.31%)

Total cholesterol(mmol/L)a

 2.86–5.98

145 (86.83%)

270 (82.32%)

415 (83.84%)

 < 2.86 or > 5.98

22 (13.17%)

58 (17.68%)

80 (16.16%)

Triglyceride(mmol/L)

 0.56–1.7

143 (85.63%)

273 (83.23%)

416 (84.04%)

 < 0.56 or > 1.7

24 (14.37%)

55 (16.77%)

79 (15.96%)

High density lipoprotein cholesterol(mmol/L)a

 0.94–2

114 (68.26%)

260 (79.27%)

374 (75.56%)

 < 0.94 or > 2

53 (31.74%)

68 (20.73%)

121 (24.44%)

Low density lipoprotein cholesterol(mmol/L)

 2.07–3.12

82 (49.10%)

138 (42.07%)

220 (44.44%)

 < 2.07 or > 3.12

85 (50.90%)

190 (57.93%)

275 (55.56%)

  1. aThe parameters were statistically significant by LASSO analysis
  2. Abbreviations: BMI Body mass index, ODI The Oswestry disability index, JOA Japanese orthopaedic association scores, VAS Visual analogue scale, ASIA American spinal injury association, NCMS New rural cooperative medical system, AST Aspartate aminotransferase, ALT Alanine aminotransferase, HDL-C High-density lipoprotein cholesterol