Comparison 15.

Nitrogen balance

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 All studies (all medical)	3	81	Mean Difference (IV, Fixed, 95% CI)	1.99 [0.69, 3.28]
1.1 Parenteral nutrition	1	21	Mean Difference (IV, Fixed, 95% CI)	3.60 [0.86, 6.34]
1.2 Enteral nutrition	1	22	Mean Difference (IV, Fixed, 95% CI)	1.40 [‐3.16, 5.96]
1.3 Supplements	1	38	Mean Difference (IV, Fixed, 95% CI)	1.54 [‐0.01, 3.09]
2 Cirrhosis	2	60	Mean Difference (IV, Random, 95% CI)	1.53 [0.06, 2.99]