Table 3 Association of Socio-economic position (SEP) with Prolonged length of stay (LOS)

LOS

IDACI (quartiles)

OR

95% CI

p value

OR

95% CI

p value

OR

95% CI

p value

OR

95% CI

p value

≥ to 1.8 days (mean)

1st (least)

1.00

-

-

1.00

-

-

1.00

-

-

1.00

-

-

2nd

1.04

0.84, 1.29

0.696

1.07

0.86, 1.34

0.54

1.07

0.85, 1.35

0.538

1.03

0.81, 1.30

0.824

3rd

1.26

1.02, 1.56

0.035

1.29

1.04, 1.61

0.023

1.27

1.01, 1.59

0.041

1.24

0.98, 1.57

0.068

4th (most)

0.98

0.78, 1.24

0.757

0.97

0.77, 1.23

0.795

1.00

0.78, 1.27

0.992

0.96

0.75, 1.23

0.746

≥to 4 days

1st (least)

1.00

-

-

1.00

-

-

1.00

-

-

1.00

-

-

2nd

1.13

0.88, 1.49

0.325

1.16

0.88, 1.52

0.285

1.18

0.89, 1.56

0.246

1.17

0.88, 1.57

0.288

3rd

1.27

0.97, 1.64

0.069

1.28

0.98, 1.68

0.072

1.23

0.93, 1.62

0.151

1.20

0.91, 1.59

0.196

4th (most)

0.96

0.70, 1.25

0.767

0.93

0.69, 1.25

0.638

0.96

0.71, 1.30

0.813

0.96

0.71, 1.30

0.789

>24 h (median)

1st (least)

1.00

-

-

1.00

-

-

1.00

-

-

1.00

-

-

2nd

1.21

0.94, 1.56

0.1516

1.19

0.92, 1.55

0.189

1.17

0.90, 1.54

0.237

1.05

0.79, 1.41

0.730

3rd

1.17

0.91, 1.51

0.221

1.17

0.90, 1.52

0.233

1.14

0.87, 1.49

0.359

1.11

0.83, 1.49

0.476

4th (most)

1.18

0.90, 1.54

0.230

1.14

0.87, 1.50

0.33

1.18

0.89, 1.57

0.249

1.07

0.79, 1.45

0.670

IRR

95% CI

p value

IRR

95% CI

p value

IRR

95% CI

p value

IRR

95% CI

p value

Days

1st (least)

ref

-

-

ref

-

-

ref

-

-

ref

-

-

2nd

1.07

0.95, 1.19

0.298

1.06

0.95, 1.19

0.310

1.06

0.94, 1.18

0.351

1.05

0.93, 1.17

0.443

3rd

1.16

1.04, 1.30

0.009

1.17

1.04, 1.31

0.009

1.14

1.02, 1.28

0.022

1.13

1.01, 1.27

0.027

4th (most)

1.14

1.01, 1.29

0.031

1.12

0.99, 1.27

0.061

1.13

1.01, 1.28

0.040

1.12

1.00, 1.26

0.056