Skip to main content

Table 2 Relationship between safety climate, safety climate strength and length of stay

From: Safety climate, safety climate strength, and length of stay in the NICU

 

Parameter estimate

SE

Incremental F

P

RMSE

Model 1 (CF + PPR)

 Safety Climate PPR

− 0.38

0.31

1.52

.22

23.23

Model 2 (CF + PPR + Strength)

 Safety Climate PPR

0.62

0.39

2.58

.11

23.20

 Safety Climate Strength

−1.59

0.37

18.59

<.001

Model 3 (CF + PPR + Strength + PPR*Strength)

 Safety Climate PPR

5.20

1.79

8.48

.004

23.19

 Safety Climate Strength

−5.92

1.69

12.27

<.001

 Safety Climate PPR * Strength

−5.58

2.12

6.89

.009

  1. n = 6682 infants in 44 NICUs. Ordinary least squares regression analysis at the patient level, with LOS transformed to log-normal scale.
  2. RMSE root mean square error, reflecting standard deviation of the unexplained variance. Lower values indicate better model fit.
  3. LOS Length of stay, PPR Percent positive response.
  4. CF Clinical factors: sex, gestational age, 5 min Apgar score, small for gestational age, outborn, birth weight, antenatal steroids, fetal distress, major anomalies, maternal hypertension, and maternal race.
Back to article page

BMC Health Services Research

ISSN: 1472-6963

Contact us