Parenteral nutrition with n-3 polyunsaturated fatty acids on nutrition inflammatory and immune status of gastrointestinal cancer patients: Meta-analysis

Table 1 Basic characteristics of papers included

Ref.	Country	N, C/T	Intervention method, C	Intervention method, T	Outcome measure	Research type	Random	Blinded
Teng et al[21], 2016	China	40/40	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	1, 2, 3, 4	Forward-looking	Yes	No
Hu et al[22], 2018	China	20/20	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	1, 2, 3	Forward-looking	Yes	No
Song et al[23], 2018	China	34/34	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	1, 2, 3, 4	Forward-looking	Yes	No
Qin et al[24], 2019	China	50/50	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	2, 3	Forward-looking	Yes	No
Zhu et al[25], 2012	China	29/28	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	3	Forward-looking	Yes	No
Mo et al[26], 2012	China	80/80	Routine parenteral nutrition	Routine parenteral nutrition + PUFAs	1, 2	Forward-looking	Yes	No

“1” represents inflammatory factor level; “2” represents nutritional status index; “3” represents immune function index; and “4” represents adverse reaction. C: Control groups; T: Research groups; PUFA: N-3 polyunsaturated fatty acids.