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Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Characteristics of weekend versus weekday admissions

From: Hip fracture patients admitted to hospital on weekends are not at increased risk of 30-day mortality as compared with weekdays

 

Weekday

Weekend

p-Value†

Weekend effect† (95% CI)

Number of admissions (%)

664 (74.27)

230 (25.73)

–

–

Sex (male) (%)

184 (27.71)

59 (25.65)

0.545

Odds ratio 0.90 (0.64–1.26)

Died (30 days) (%)

69 (10.39)

16 (6.96)

0.128

Odds ratio 0.65 (0.36 to 1.14)

AMT > 7 (%)

226 (34.04)

82 (35.65)

0.657

Odds ratio 1.07 (0.78 to 1.47)

ASA > 2 (%)

464 (69.88)

165 (71.74)

0.595

Odds ratio 1.09 (0.78 to 1.52)

Neurological disorders (%)

91 (13.70)

30 (13.04)

0.801

Odds ratio 0.94 (0.60 to 1.47)

EtOH (%)

17 (2.56)

5 (2.17)

0.745

Odds ratio 0.84 (0.31 to 2.32)

Chest infection (%)

114 (17.17)

34 (17.78)

0.402

Odds ratio 0.84 (0.55–1.27)

UTI (%)

102 (15.36)

50 (21.74)

0.027

Odds ratio 1.53 (1.05 to 2.23)

Indoor walking (independent) (%)

298 (44.88)

98 (42.61)

0.550

Odds ratio 0.91 (0.67 to 1.23)

Outdoor walking (independent) (%)

270 (40.66)

90 (39.13)

0.683

Odds ratio 0.94 (0.69 to 1.27)

Mean age (SD)

82.53 (9.09)

83.09 (8.26)

0.407

0.56 (−0.77 to 1.90)

Mean time to surgery (h) (SD)

31.36 (27.50)

28.06 (30.61)

0.129

−3.30 (−7.55 to 0.95)

Mean time to geriatrician (h) (SD)

49.59 (107.27)

64.10 (206.97)

0.175

14.51 (−6.49 to 35.50)

Mean haemoglobin (g/L) (SD)

122.65 (18.96)

124.65 (18.06)

0.163

2.00 (−0.81 to 4.82)

Mean white cell count (109/L) (SD)

10.41 (4.84)

11.76 (12.71)

0.021

1.35 (0.20 to 2.51)

Mean platelets (109/L)(SD)

251.28 (89.47)

238.68 (75.55)

0.056

−12.60 (−25.23 to 0.33)

Mean sodium (mmol/L) (SD)

136.57 (6.48)

137.37 (12.05)

0.210

0.79 (−0.45 to 2.04)

Mean potassium (mmol/L) (SD)

4.28 (0.66)

4.25 (0.85)

0.542

−0.03 (−0.14 to 0.07)

Mean urea (mmol/L) (SD)

8.05 (4.25)

8.50 (4.89)

0.195

0.44 (−0.22 to 1.10)

Mean creatinine (μmol/L) (SD)

87.22 (46.00)

93.28 (56.54)

0.106

6.06 (−1.28 to 13.41)

Mean INR (SD)

1.06 (0.13)

1.05 (0.13)

0.451

−0.01 (−0.03 to 0.01)

Mean APTT (s) (SD)

28.44 (4.09)

29.83 (18.15)

0.066

1.38 (−0.09 to 2.87)

  1. †p-Values and estimates (95% CI) of effect are from a weekend term in a linear (for continuous variables) or logistic (for binary variables) regression model
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