From: Clinical features and outcomes of COVID-19 in older adults: a systematic review and meta-analysis
Variable | Number of studies | Number of patients | WPP | 95% CI | p-value for Cochran’s Q | I2 | Egger’s test* (p-value) |
---|---|---|---|---|---|---|---|
Severity of illness | |||||||
 Severe | 18 | 2049 | 0.50 | 0.36–0.65 | 0.00 | 95 | < 0.001 |
 Critical | 14 | 5280 | 0.23 | 0.16–0.31 | 0.00 | 88 | < 0.001 |
Outcomes | |||||||
 Discharged | 14 | 6901 | 0.43 | 0.03–0.88 | 0.00 | 100 | < 0.001 |
 Dead | 30 | 12,060 | 0.11 | 0.04–0.20 | 0.00 | 98 | < 0.001 |
Comorbidities | |||||||
  ≥ 1 comorbidity | 12 | 1888 | 0.81 | 0.68–0.93 | 0.00 | 92 | < 0.001 |
 Hypertension | 17 | 2245 | 0.48 | 0.36–0.60 | 0.00 | 92 | < 0.001 |
 Diabetes Mellitus | 17 | 1804 | 0.22 | 0.13–0.32 | 0.00 | 86 | 0.004 |
 Cardiovascular disease | 13 | 1679 | 0.19 | 0.11–0.28 | 0.00 | 85 | 0.002 |
 Hypothyroid | 3 | 99 | 0.11 | 0.01–0.25 | 0.16 | 45 | .. |
 Neurological disease | 9 | 871 | 0.09 | 0.06–0.13 | 0.02 | 55 | .. |
 Malignancy | 12 | 1476 | 0.09 | 0.03–0.15 | 0.00 | 80 | 0.014 |
 Chronic lung disease | 14 | 1748 | 0.08 | 0.03–0.13 | 0.00 | 82 | 0.004 |
 Cerebrovascular  disease | 9 | 814 | 0.08 | 0.06–0.11 | 0.23 | 24 | .. |
 Kidney disease | 14 | 1591 | 0.05 | 0.01–0.09 | 0.00 | 77 | 0.066 |
 Liver disease | 11 | 1416 | 0.03 | 0.01–0.05 | 0.01 | 58 | 0.018 |
 Autoimmune diseases | 3 | 473 | 0.02 | 0.00–0.06 | 0.06 | 65 | .. |
Clinical Features | |||||||
 Fever | 11 | 782 | 0.83 | 0.66–0.97 | 0.00 | 91 | < 0.001 |
 Cough | 11 | 782 | 0.60 | 0.50–0.70 | 0.00 | 71 | < 0.001 |
 Dry cough | 4 | 432 | 0.56 | 0.43–0.69 | 0.08 | 56 | .. |
 Sputum production | 8 | 654 | 0.28 | 0.17–0.39 | 0.00 | 70 | .. |
 Dyspnoea | 11 | 782 | 0.42 | 0.19–0.67 | 0.00 | 94 | 0.020 |
 Fatigue | 9 | 691 | 0.33 | 0.16–0.52 | 0.00 | 88 | .. |
 Anorexia | 3 | 470 | 0.31 | 0.01–0.67 | 0.00 | 96 | .. |
 Chest discomfort | 5 | 500 | 0.26 | 0.01–0.57 | 0.00 | 93 | .. |
 Diarrhoea | 6 | 575 | 0.18 | 0.02–0.39 | 0.00 | 91 | .. |
 Myalgia | 9 | 746 | 0.15 | 0.01–0.33 | 0.00 | 93 | .. |
 Abdominal pain | 4 | 219 | 0.11 | 0.02–0.22 | 0.00 | 80 | .. |
 Sore Throat | 5 | 639 | 0.10 | 0.00–0.25 | 0.00 | 94 | .. |
 Headache | 7 | 714 | 0.09 | 0.00–0.24 | 0.00 | 94 | .. |
 Nausea-Vomiting | 4 | 543 | 0.08 | 0.00–0.23 | 0.00 | 93 | .. |
 Gastrointestinal symptoms | 3 | 169 | 0.15 | 0.00–0.79 | 0.00 | 94 | .. |