Table 1 Type of studies included in the literature review
From: Covid-19 and non-communicable diseases: evidence from a systematic literature review
Chronic illness | Number of studies | Share of total studies included in the review | Type of studies included, (N) |
|---|---|---|---|
Diabetes | 33 | 73 | Retrospective, observational study (2) |
Retrospective, case study (3) | |||
Literature review (24) | |||
Meta-analysis (1) | |||
Clinical study (1) | |||
Multi-centre cross sectional study (1) | |||
National reporting data analysis (1) | |||
Hypertension/cardiovascular disease | 28 | 62 | Nested case-control design (1) |
Literature review (22) | |||
Observational study (1) | |||
Retrospective case series analysis (2) | |||
Multi-centre cross sectional study (1) | |||
National reporting data analysis (1) | |||
COPD/other respiratory illnesses | 11 | 24 | retrospective cohort study (1) |
clinical analysis of electronic records (1) | |||
literature review (8) | |||
Retrospective case series analysis (1) | |||
Chronic kidney disease | 9 | 20 | Retrospective case series analysis (1) |
literature review (8) | |||
Cancer | 10 | 22 | retrospective cohort study (2) |
Literature review (7) | |||
Multi-centre cross sectional study (1) | |||
Chronic liver disease | 4 | 9 | Literature review (4) |
Asthma | 7 | 16 | demographic analysis (1) Study of medical records (1) |
Literature review (5) |