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. 2016 May 27;16:450. doi: 10.1186/s12889-016-3127-5

Table 3.

Use of Emergency Care and Hospital Care (unplanned admissions) among Primary Care users and non-users (incidence rate ratios, IRR). Results of standard or zero-inflated negative binomial regression models across immigrant groups

Use of Emergency Care Use of Hospital Care
PC users PC non-users PC users PC non-users
Mean No. of visits/10 ind. IRR Mean No. of visits/10 ind. IRR Mean No. of unplanned admissions/100 ind. IRR Mean No. of unplanned admissions/100 ind. IRR
Nationals 3.13 (ref) 1.10 (ref) 4.60 (ref) 2.70 (ref)
Immigrants 3.28 1.20 0.58 0.91 4.02 1.15 0.70 0.61
Africa 3.72 1.08 0.63 0.88* 4.10 1.25 0.70 0.58
Asia 3.44 1.36 0.58 1.52 3.73 1.47 0.78 0.59
Eastern Europe 3.07 1.22 0.64 0.88 4.35 1.13 0.74 0.57
Latin America 3.32 1.32 0.79 1.04 3.77 1.05 0.72 0.82
Western Europe & North America 2.76 0.94* 0.29 0.37 4.14 1.12 0.61 0.26

PC Primary Care; Ind. Individuals

All means are standardised by age and sex. Models adjusted by age, sex, and morbidity burden

In those cases where the Vuong test was statistically non-significant showing large negative values, standard negative binomial models were employed, *p < 0.05, p < 0.001