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Table 2 Direct effect: Zero inflated negative binomial regressions for family and friends’ support on allied healthcare service use

From: The influence of social support on healthcare service use following transport-related musculoskeletal injury

  Allied healthcare service use
Logistic Negative binomial
Models OR 95 % CI IRR 95 % CI
1. Familya     
 Definitely 2.17* 1.21–3.91 0.82 0.63–1.06
 Yes, sometimes 1.67 0.89–3.14 0.98 0.74–1.30
 No, not at all 2.66* 1.34–5.27 0.73 0.53–1.01
 Not often (ref)     
2. Friendsa     
 Definitely 1.87* 1.09–3.21 0.65* 0.52–0.83
 Yes, sometimes 1.55 0.88–2.72 0.79 0.62–1.01
 No, not at all 2.31* 1.20–4.42 0.75 0.55–1.02
 Not often (ref)     
  1. OR odds ratio; IRR incidence rate ratio; CI confidence intervals; REF reference
  2. In the logistic model, an OR value greater than 1 indicates increasing odds of being a more frequent non-user of healthcare services, whereas an OR value less than 1 indicates increasing odds of being a more frequent users of healthcare services. In the negative binomial model, an IRR value greater than 1 indicates increase healthcare service use rate, whereas an IRR less than 1 indicates decrease healthcare service use rate
  3. aModels adjusted for family composition, gender, age, education, country of birth, SEIFA, injury types, pre-injury health status, hospitalisation, days post-injury, and PCS score
  4. *p < 0.05