Skip to main content

Table 6 Rate of falls (number of falls per 1000 occupied bed days) at each facility

From: Increasing the uptake of vitamin D supplement use in Australian residential aged care facilities: results from the vitamin D implementation (ViDAus) study

 

Overall

Wedge 1

Wedge 2

Wedge 1 vs. Wedge 2

Mean (Range)

Mean

(Range)

Mean

(Range)

Unadjusted p value for raw differencea

Adjusted for baselinea

Audit 1:

6 months pre-baseline

5.6 (2.1–12.5)

4.9

6.1

p = 0.092

 

Audit 2:

Baseline to 6 months

6.4 (1.7–12.9)

5.4

7.1

p = 0.095

p = 0.4

Audit 3:

6 to 12 months

6.7 (1.7–12.9)

6.1

7.1

p = 0.3

p = 0.6

Audit 4:

12 to 18 months

7.0 (1.9–18.0)

5.8

7.7

p = 0.082

p = 0.7

Pre-intervention Period (Wedge 1: Audit 1; Wedge 2: Audits 1 + 2)

5.8 (2.1–12.7)

4.9

(2.7–9.2)

6.5

(2.1–12.7)

  

Post Intervention Period (Wedge 1: Audits 3 + 4; Wedge 2: Audit 4)

6.7 (2.2–14.6)

5.8

(2.3–10.0)

7.4

(2.2–14.6)

  
 

Mean Change

(signed rank test p value)

Kruskal-Wallis p value for difference between wedges

Change Post Intervention vs. Pre-Intervention

0.9 (p = 0.015)

0.8 (p = 0.14)

0.9 (p = 0.05)

p = ~ 1

  1. aNegative binomial model used for fall rates per occupied bed days due to overdispersion in the Poisson model. Adjustment for baseline was achieved using a longitudinal GEE model with autoregressive correlation