Medical centres for the homeless in Hamburg – consultation reasons and diagnoses compared to primary care patients in the regular health care system

Table 4 International comparison of the three most frequent diagnoses in homeless patients

Rank	MCH Hamburg, 2013	MCH Hamburg, 2014	Van Laere, et al. Netherlands [20]	Alfranca et al. Spain [21]	Pribish et al. Florida, USA [26]
1.	Psych. behavioural disorders due to alcohol	Acute respiratory infection	Diseases of the skin and subcutaneous tissue	Essential (primary) hypertension	Psychiatric diagnoses (including substance abuse)
2.	Essential (primary) hypertension	Essential (primary) hypertension	Acute respiratory infection	Diabetes mellitus, type 2	Hypertension^a
3.	Diabetes mellitus, type 2	Psych. behavioural disorders due to alcohol	Psych. behavioural disorders due to alcohol	Other chronic obstructive pulmonary disease	Respiratory disease^a

The three most frequent diagnoses in Medical centres for the homeless in Hamburg, Germany (2013 N = 553 diagnoses in 388 patients and 2014 N = 451 diagnoses in 452 patients) in comparison with Van Laere et al., 2017 Netherlands N = 364 homeless patients, Alfranca et al., 2021 Spain N = 492 homeless patients, and Pribish et al., 2019, Florida USA N = 183 homeless patients, ^a107 homeless patients; Bold notation is used for the comparison of the rankings of the most frequent diagnoses

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