Comparison of effects of six main gastrectomy procedures on patients’ quality of life assessed by Postgastrectomy Syndrome Assessment Scale-45

Table 3 Comparison of main outcome measures of Postgastrectomy Syndrome Assessment Scale-45 among six types of gastrectomy using ANOM

	Types of gastrectomy	TGRY (n = 393)	PG (n = 193)	DGRY (n = 475)	DGBI (n = 909)	PPG (n = 313)	LR (n = 85)	Overall (n = 2368)
Domain	Main outcome measures	mean ± SD	mean ± SD	mean ± SD	mean ± SD	mean ± SD	mean ± SD	mean ± SD	N
Symptoms	Esophageal reflux SS	2.0 ± 1.0b	2.0 ± 1.0b	1.5 ± 0.7a	1.7 ± 0.8	1.7 ± 0.8	1.4 ± 0.5a	1.7 ± 0.9	4
	Abdominal pain SS	1.8 ± 0.8	1.7 ± 0.7	1.7 ± 0.8	1.7 ± 0.7	1.6 ± 0.7	1.5 ± 0.6	1.7 ± 0.8	0
	Meal-related distress SS	2.6 ± 1.1b	2.6 ± 1.1b	2.1 ± 0.9a	2.1 ± 0.9a	2.1 ± 0.9	1.5 ± 0.6a	2.2 ± 1.0	5
	Indigestion SS	2.3 ± 0.9b	2.2 ± 0.8	2.0 ± 0.8	2.0 ± 0.8a	2.0 ± 0.9	1.5 ± 0.6a	2.0 ± 0.9	3
	Diarrhea SS	2.3 ± 1.2b	2.0 ± 1.0	2.1 ± 1.1	2.1 ± 1.1	1.8 ± 1.0a	1.5 ± 0.8a	2.1 ± 1.1	3
	Constipation SS	2.1 ± 0.9	2.3 ± 1.1	2.1 ± 1.0	2.2 ± 1.0	2.2 ± 1.1	1.9 ± 0.9a	2.2 ± 1.0	1
	Dumping SS	2.2 ± 1.1b	2.0 ± 1.0	2.0 ± 1.0	2.0 ± 1.0	1.8 ± 0.9a	1.3 ± 0.4a	2.0 ± 1.0	3
	Total symptom score	2.2 ± 0.7b	2.1 ± 0.7	1.9 ± 0.7	2.0 ± 0.7	1.9 ± 0.7	1.5 ± 0.4a	2.0 ± 0.7	2
Living status	Change in BW	-13.8% ± 7.9%b	-10.9% ± 8.2%b	-8.4% ± 6.6%	-7.9% ± 8.1a	-6.9% ± 7.0%a	-1.6% ± 5.7%a	-8.9% ± 8.0%	5
	Ingestion amount of food per meal	6.4 ± 1.9b	6.5 ± 1.9b	7.2 ± 2.0	7.1 ± 2.0	7.0 ± 1.9	9.0 ± 1.8a	7.0 ± 2.0	3
	Necessity for additional meals	2.4 ± 0.8b	2.0 ± 0.8	1.9 ± 0.8	1.9 ± 0.8a	1.8 ± 0.8a	1.4 ± 0.6a	1.9 ± 0.8	4
	Quality of ingestion SS	3.8 ± 1.0	3.6 ± 1.0b	3.8 ± 0.9	3.8 ± 0.9	3.8 ± 0.9	4.0 ± 0.8a	3.8 ± 0.9	2
	Ability for working	2.0 ± 0.9b	2.0 ± 0.9	1.8 ± 0.9	1.8 ± 0.9a	1.8 ± 0.9	1.4 ± 0.6a	1.8 ± 0.9	3
QOL	Dissatisfaction with symptoms	2.1 ± 1.0b	2.0 ± 0.9	1.8 ± 0.9	1.8 ± 0.9	1.8 ± 0.9	1.2 ± 0.4a	1.8 ± 0.9	2
	Dissatisfaction at the meal	2.8 ± 1.1b	2.7 ± 1.1b	2.2 ± 1.1a	2.2 ± 1.1a	2.2 ± 1.1	1.3 ± 0.6a	2.3 ± 1.1	5
	Dissatisfaction at working	2.1 ± 1.1b	2.0 ± 1.1b	1.7 ± 1.0	1.7 ± 0.9a	1.7 ± 0.9	1.1 ± 0.4a	1.8 ± 1.0	4
	Dissatisfaction for daily life SS	2.3 ± 0.9b	2.2 ± 0.9b	1.9 ± 0.9	1.9 ± 0.8a	1.9 ± 0.8	1.2 ± 0.4a	2.0 ± 0.9	4
	PCS of SF-8	49.6 ± 5.6b	49.5 ± 6.1	50.8 ± 5.6	50.5 ± 5.5	51.1 ± 5.3	52.4 ± 3.8a	50.5 ± 5.6	2
	MCS of SF-8	49.2 ± 6.0	49.0 ± 6.0	49.8 ± 5.7	49.9 ± 5.7	50.0 ± 6.1	51.6 ± 4.6a	49.7 ± 5.8	1

^aP < 0.05, better than overall mean (ANOM).

^bP < 0.05, worse than overall mean (ANOM).

In italicized items or subscales, higher score indicates better condition. In non-italicized items or subscales, higher score indicates worse condition. N: The number of the type of gastrectomy mean differ from the overall mean; TGRY: Total gastrectomy with Roux-en-Y reconstruction; PG: Proximal gastrectomy; DGRY: Distal gastrectomy with Roux-en-Y reconstruction; DGBI: Distal gastrectomy with Billroth I reconstruction; PPG: Pylorus preserving gastrectomy; LR: Local resection of the stomach; QOL: Quality of life; SF-8: 8-item short-form generic health-related QOL questionnaire; SS: Subscale.