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Table 2 Results of regression analyses assessing the impact of the job aid intervention on the five primary outcome indicators for analysis and use of vaccine-preventable disease data

From: Health system barriers to strengthening vaccine-preventable disease surveillance and response in the context of decentralization: evidence from Georgia

Outcome indicator Mean values from Likert scale Regression results
n = 87 observations Intervention group Pre-test Post-test Model* Interaction coefficient Standard error P-value
1. Perceptions of availability of quality VPD data Intervention 2.75 3.28 Linear regression 0.6533 0.4722 0.1664
  Control 3.00 3.18     
2. Perceived capability to perform analysis of VPD data Intervention 3.40 3.90 Linear regression 1.1191 0.3110 0.0003
  Control 4.50 3.80     
3. Likert scale question measuring motivation to carry out analysis Intervention 3.16 3.57 Multinomial regression -2.4354 1.2843 0.0579
  Control 4.09 3.50     
4. Perceived value of using analyzed VPD data for decision-making Intervention 4.08 4.09 Linear regression 0.2824 0.2205 0.2004
  Control 4.56 4.38     
5. Likert scale question measuring perceived motivation to use surveillance data Intervention 3.81 3.92 Multinomial regression -1.4828 1.4084 0.2924
  Control 4.18 3.60     
  1. VPD = Vaccine preventable disease
  2. *Regression models included: intervention group, subject, survey round, intervention group*survey round interaction term, and controlled for sex, age, years of experience and rayon. Linear and multinomial regression performed using generalized linear model in SAS (Proc Genmod), with generalized estimating equation (GEE) used to account for correlations between subjects with repeated measures.
  3. Impact of intervention assessed by intervention group*survey round interaction term.