Table 1.
General characteristics by percent body weight loss during hospitalization
| All | <5% Weight loss | ≥5% Weight loss | p-value | |
|---|---|---|---|---|
| n=48 | n=26 | n=22 | ||
| Age (years) | 56.1±14.9 | 54.8±13.3 | 57.6±16.7 | 0.29 |
| Pre-OP BMI (kg/m2)† | 18.8±2.7 | 18.9±2.7 | 18.7±2.8 | 0.83 |
| Post-OP BMI (kg/m2)† | 18.0±2.8 | 18.5±2.5 | 17.4±2.8 | 0.18 |
| Pre-OP MUAC (cm)† | 23.3±3.3 | 23.6±2.6 | 22.8±3.3 | 0.37 |
| Post-OP MUAC (cm)† | 23.0±3.2 | 23.8±2.9 | 22.0±3.3 | 0.20 |
| Length of stay (days)† | 12.6±5.4 | 12.1±4.4 | 13.1±6.6 | 0.76 |
| Time between pre- and post-OP body weight measurements (days) | 9.1±3.1 | 8.5±3.2 | 9.8±3.1 | 0.10 |
| Gender | ||||
| Men | 23 (48) | 14 (54) | 9 (41) | 0.40 |
| Women | 25 (52) | 12 (46) | 13 (59) | |
| Type of surgery‡ | ||||
| Gastric | 16 (33) | 5 (19) | 11 (50) | 0.09 |
| SI/colon | 16 (33) | 10 (38) | 6 (27) | |
| GB/Liver/pancreas | 16 (33) | 11 (42) | 5 (23) | |
GB: gallbladder; OP: operation; MUAC: mid upper arm muscle circumference; SI: small intestine. % Weight loss was defined as pre-operative (on date of data collection) to post-operative weight loss during hospitalization.
Values represent mean±SD or N (%). Age was not normally distributed so a Wilcoxon rank-sum test used. Fisher’s exact test was used for gender and type of surgery analysis.
†
Sample sizes vary due to missing data as follows: pre- and post-OP BMI (n=46); pre-OP MUAC (n=44); post-OP MUAC (n=21); and length of stay (n=47)
‡
One subject who underwent SI/Colon/Gastric surgery had missing data on body weight.