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Table 3 Frequency of visits to the OAEOC and RGP during the previous 12 months. Incidence rate ratios of different models analysed with Poisson regression across immigrant groups and selected countries

From: Use of emergency care services by immigrants—a survey of walk-in patients who attended the Oslo Accident and Emergency Outpatient Clinic

  OAEOC visits RGP visits
  Model 1 Model 2 Model 1 Model 2
  IRR (95 % CI) IRR (95 % CI) IRR (95 % CI) IRR (95 % CI)
Model for immigrants
 Norwegians (ref) 1 1 1 1
 First-generation immigrants 1.29 (1.17–1.42)** 1.34 (1.21–1.49)** 1.16 (1.09–1.23)** 1.12 (1.05–1.19)**
 Second-generation immigrants 1.81 (1.58–2.07)** 1.58 (1.36–1.84)** 1.09 (0.99–1.19) 1.34 (1.21–1.46)**
Gender (ref: Female)   1   1
 Male   0.90 (0.82–0.98)*   0.79 (0.75–0.83)**
Age (ref: < 20 years)   1   1
 20–39   0.79 (0.71–0.88)*   1.17 (1.10–1.26)**
 40–59   0.74 (0.64–0.85)**   1.46 (1.35–1.58)**
 ≥ 60   0.60 (0.49–0.72)**   1.77 (1.62–1.94)**
Model for selected countries
 Norway (ref) 1 1 1 1
 Sweden 1.28 (1.04–1.56)* 1.32 (1.07–1.63)* 0.79 (0.63–0.98)* 0.78 (0.63–0.98)*
 Pakistan 1.68 (1.35–2.09)** 1.62 (1.29–2.02)** 1.34 (1.18–1.52)** 1.37 (1.21–1.54)**
 Somalia 1.73 (1.36–2.20)** 1.55 (1.19–2.01)** 1.05 (0.90–1.23) 1.12 (0.95–1.33)
 Poland 1.02 (0.76–1.37) 1.01 (0.75–1.37) 0.78 (0.63–0.98)* 0.80 (0.65–0.99)*
Gender (ref: Female)   1   1
 Male   0.90 (0.82–1.00)   0.78 (0.74–0.83)**
Age (ref: < 20 years)   1   1
 20–39   0.79 (0.70–0.89)**   1.20 (1.12–1.29)**
 40–59   0.69 (0.58–0.80)**   1.40 (1.29–1.53)**
 ≥ 60   0.58 (0.47–0.72)**   1.76 (1.60–1.93)**
  1. OAEOC (Oslo Accident and Emergency Clinic), RGP (regular general practitioner)
  2. Norwegians used as the reference group. IRR incidence rate ratio
  3. Model 1: Unadjusted, Model 2: Adjusted for age and gender
  4. * Significant result at the p < 0.05 level, **p < 0.001