# Table 3

Logistic regression analysis: odds ratio for higher extent of 1) formulate questions, 2) search databases and 3) search other sources in associated variables categorised as individual and organizational factors
Framework area and variables Formulate questions (n = 914) Search databases (n = 918) Search other sources (n = 915)
OR (CI) (step1) Chi-square OR (CI) (step 2) Chi-square OR (CI) (step1) Chi-square OR (CI) (step 2) Chi-square OR (CI) (step 1) Chi-square OR (CI) (step 2) Chi-square
Block 1 ∆ 93.7*** ∆ 53.2*** ∆ 63.8***
Individual factors
Sex 1.2 (0.7;2.1) 1.2 (0.7;2.0) 1.0 (0.6;1.7) 1.0 (0.6;1.8) 1.0 (0.7;1.6) 1.1 (0.7;1.7)
Age 1.2 (0.8;1.7) 1.2 (0.8;1.8) 1.2 (0.8;1.7) 1.2 (0.8;1.8) 1.0 (0.7;1.3) 1.1 (0.8;1.5)
Previous nurse aide training 1.4 (0.9; 2.0) 1.3 (0.9;2.0) 1.3 (0.9;1.9) 1.3 (0.9;1.8) 1.3 (0.9;1.7) 1.2 (0.9;1.6)
Further study after nursing degree 1.1 (0.7; 1.8) 1.0 (0.6;1.7) 1.1 (0.7;1.8) 1.1 (0.7;1.8) 1.0 (0.6;1.4) 1.0 (0.6;1.5)
EBP capability 8.3 (4.8;14.5) 7.3 (4.1;12.9) 4.0 (2.6;6.2) 3.8 (2.4;5.9) 3.0 (2.2;3.9) 2.6 (2.0;3.5)
Block 2 ∆ 30.9* ∆ 10.7 ∆ 39.3**
Organisational factors
Present form of employment 1.1(0.8;1.7) 0.9 (0.6;1.3) 1.2 (0.9;1.6)
Clinical setting Hospital
• Primary care 0.3 (0.1;1.1) 1.0 (0.4;2.7) 1.9 (0.8;4.3)
• Care of older people 1.0 (0.6;1.7) 1.1 (0.6;1.9) 1.7 (1.0;2.7)
• Psychiatry care 1.5 (0.8;2.7) 1.4 (0.8;2.6) 1.0 (0.6;1.6)
Full or part time 0.7 (0.5;1.1) 0.7 (0.5;1.1) 1.0 (0.7;1.4)
Work shifts (Three shifts)
• Office hours 0.9 (0.5;1.7) 0.8 (0.4;1.4) 1.4 (0.8;2.4)
• Two shifts 0.8 (0.6;1.3) 1.0 (0.7;1.4) 1.0 (0.7;1.3)
Work overtime 1.2 (0.7;1.9) 1.2 (0.8;1.8) 1.5 (1.0;2.1)
Enough staff 1.0 (0.7;1.5) 1.0 (0.7;1.4) 0.9 (0.7;1.2)
Collective efficacy 1.3 (0.9;2.0) 1.2 (0.8;1.7) 1.4 (1.0;1.9)
Role clarity 2.0 (1.2;3.2) 1.3 (0.9;2.0) 1.0 (0.7;1.4)
Leadership 1.3 (0.9;2.0) 1.2 (0.8;1.8) 1.5 (1.1;2.1)
Job demands 1.5 (0.9;2.2) 1.1 (0.8;1.7) 0.9 (0.7;1.3)
Control 1.2 (0.7;2.2) 1.2 (0.6;2.1) 1.4 (0.8;2.5)
Disengagement 0.8 (0.5;1.5) 1.0 (0.6;1.8) 0.8 (0.5;1.1)
Exhaustion 1.0 (0.7;1.4) 1.1 (0.8;1.6) 0.9 (0.7;1.3)
Final model 93.7*** 124.7*** 53.2*** 63.9*** 63.8*** 103.1***

* = p<0.05; *** = p<0.001.

Boström et al.

Boström et al. BMC Health Services Research 2013 13:165   doi:10.1186/1472-6963-13-165