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. 2017 May 19;2017(5):CD011598. doi: 10.1002/14651858.CD011598.pub2

Comparison 18. Oral ‐ All cause mortality ‐ maximum follow‐up.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 All‐cause mortality ‐ overall 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
2 All‐cause mortality ‐ bias 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
2.1 High risk of bias 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
2.2 Low risk of bias 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3 All‐cause mortality ‐ medical speciality 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
3.1 Cardiology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.2 Medical gastroenterology and hepatology 1 36 Risk Ratio (M‐H, Random, 95% CI) 0.45 [0.10, 2.01]
3.3 Geriatrics 9 1552 Risk Ratio (M‐H, Random, 95% CI) 0.81 [0.55, 1.19]
3.4 Pulmonary disease 2 93 Risk Ratio (M‐H, Random, 95% CI) 0.49 [0.16, 1.54]
3.5 Endocrinology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.6 Infectious diseases 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.7 Rheumatology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.8 Haematology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.9 Nephrology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.10 Gastroenterologic surgery 10 1267 Risk Ratio (M‐H, Random, 95% CI) 1.14 [0.61, 2.12]
3.11 Trauma surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.12 Ortopaedics 4 361 Risk Ratio (M‐H, Random, 95% CI) 1.80 [0.92, 3.52]
3.13 Plastic, reconstructive, and aesthetic surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.14 Vascular surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.15 Transplant surgery 1 37 Risk Ratio (M‐H, Random, 95% CI) 0.35 [0.02, 8.09]
3.16 Urology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.17 Thoracic surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.18 Neurological surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.19 Oro‐maxillo‐facial surgery 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.20 Anaesthesiology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.21 Emergency medicine 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.22 Psychiatry 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.23 Neurology 3 4081 Risk Ratio (M‐H, Random, 95% CI) 0.65 [0.22, 1.93]
3.24 Oncology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.25 Dermatology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.26 Gynaecology 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.27 Mixed 2 1074 Risk Ratio (M‐H, Random, 95% CI) 1.24 [0.73, 2.12]
4 All‐cause mortality ‐ based on adequacy of the amount of calories 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
4.1 Clearly adequate in intervention and clearly inadequate in control 4 260 Risk Ratio (M‐H, Random, 95% CI) 0.80 [0.17, 3.70]
4.2 Inadequate in the experimental or adequate in the control 12 5512 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.76, 1.17]
4.3 Experimental group is overfed 2 69 Risk Ratio (M‐H, Random, 95% CI) 0.53 [0.14, 1.98]
4.4 Unclear intake in control or experimental 14 2660 Risk Ratio (M‐H, Random, 95% CI) 0.95 [0.65, 1.38]
5 All‐cause mortality ‐ different screening tools 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
5.1 NRS 2002 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
5.2 MUST 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
5.3 MNA 2 117 Risk Ratio (M‐H, Random, 95% CI) 0.61 [0.12, 3.18]
5.4 SGA 1 525 Risk Ratio (M‐H, Random, 95% CI) 1.51 [0.99, 2.31]
5.5 Other means 29 7859 Risk Ratio (M‐H, Random, 95% CI) 0.89 [0.73, 1.09]
6 All‐cause mortality ‐ participants characterised as 'at nutritional risk' due to one of the following conditions 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
6.1 Major surgery 11 1304 Risk Ratio (M‐H, Random, 95% CI) 1.09 [0.59, 2.00]
6.2 Stroke 2 4052 Risk Ratio (M‐H, Random, 95% CI) 0.65 [0.22, 1.93]
6.3 ICU participants including trauma 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
6.4 Frail elderly participants with less severe conditions known to increase protein requirements 10 996 Risk Ratio (M‐H, Random, 95% CI) 0.87 [0.57, 1.34]
6.5 Participants do not fall into one of the categories above 9 2149 Risk Ratio (M‐H, Random, 95% CI) 0.96 [0.64, 1.46]
7 All‐cause mortality ‐ participants characterised as 'at nutritional risk' due to one of the following criteria 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
7.1 BMI less than 20.5 kg/m2 1 37 Risk Ratio (M‐H, Random, 95% CI) 0.35 [0.02, 8.09]
7.2 Weight loss of at least 5% during the last three months 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
7.3 Weight loss of at least 10% during the last six months 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
7.4 Insufficient food intake during the last week (50% of requirements or less) 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
7.5 Participants characterised as 'at nutritional risk' by other means 31 8464 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.16]
8 All‐cause mortality ‐ participants characterised as 'at nutritional risk' due to biomarkers or anthropometrics 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
8.1 Biomarkers 1 60 Risk Ratio (M‐H, Random, 95% CI) 0.43 [0.12, 1.50]
8.2 Anthropometric measures 6 1111 Risk Ratio (M‐H, Random, 95% CI) 0.78 [0.52, 1.16]
8.3 Both anthropometrics and biomarkers 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
8.4 Characterised by other means 25 7330 Risk Ratio (M‐H, Random, 95% CI) 0.99 [0.77, 1.26]
9 All‐cause mortality ‐ randomisation year 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
9.1 Before 1960 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
9.2 1960 to 1979 1 60 Risk Ratio (M‐H, Random, 95% CI) 0.76 [0.24, 2.43]
9.3 1980 to 1999 18 6974 Risk Ratio (M‐H, Random, 95% CI) 0.86 [0.71, 1.05]
9.4 After 1999 13 1467 Risk Ratio (M‐H, Random, 95% CI) 1.19 [0.77, 1.83]
10 All‐cause mortality ‐ trials where the intervention lasts fewer than three days compared with trials where the intervention lasts three days or more 32 8501 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
10.1 Three days or more 31 8462 Risk Ratio (M‐H, Random, 95% CI) 0.94 [0.77, 1.15]
10.2 Less than three days 1 39 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
10.3 Unknown 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
11 All‐cause mortality ‐ 'best‐worst case' scenario 32 8793 Risk Ratio (M‐H, Random, 95% CI) 0.70 [0.54, 0.91]
12 All‐cause mortality ‐ 'worst‐best case' scenario 32 8793 Risk Ratio (M‐H, Random, 95% CI) 1.27 [0.93, 1.73]
13 All‐cause mortality co‐interventions 131 22435 Risk Ratio (M‐H, Fixed, 95% CI) 0.91 [0.86, 0.98]
13.1 received nutrition support as co‐intervention 8 5185 Risk Ratio (M‐H, Fixed, 95% CI) 0.93 [0.80, 1.08]
13.2 did not receive nutrition support as co‐intervention 120 17017 Risk Ratio (M‐H, Fixed, 95% CI) 0.91 [0.84, 0.98]
13.3 delayed versus early nutrition support 3 233 Risk Ratio (M‐H, Fixed, 95% CI) 0.99 [0.53, 1.83]