Table 2.
Descriptive statistics by intestinal site
| Small intestine |
Large intestine |
Combined |
P values |
|
|---|---|---|---|---|
| N = 41 | N = 18 | N = 59 | ||
| Gestational age (weeks) | 32.0 (28.0-35.0) | 32.5 (29.0-36.0) | 32.0 (28.5-36.0) | P = 0.401 |
| Age (weeks) | 2.1 (0.7-3.4) | 2.3 (1.5-4.2) | 2.1 (0.70-4.0) | P = 0.301 |
| Postmenstrual age (weeks) | 34.6 (31.3-37.1) | 36.2 (34.3-37.5) | 35.1 (32.1-37.4) | P = 0.131 |
| Sex: Female | 46% (19) | 50% (9) | 47% (28) | P = 1.02 |
| Tissue type: NEC | 29% (12) | 33% (6) | 31% (18) | P = 0.772 |
| FOXP3+ | 0.3 (0.1-1.4) | 0.7 (0.2-1.5) | 0.4 (0.1-1.5) | P = 0.491 |
| CD3+ | 17.9 (10.1-27.6) | 10.8 (8.4-19.0) | 15.0 (9.0-26.0) | P = 0.121 |
| CD4+ | 19.6 (9.1-28.8) | 9.2 (7.1-17.9) | 16.5 (7.7-24.0) | P = 0.0461 |
| CD8+ | 12.1 (3.1-18.5) | 5.7 (3.3-9.5) | 7.7 (3.0-16.1) | P = 0.0871 |
| FOXP3+ / CD4+ (%) | 2.4 (0.6-7.5) | 5.1 (2.4-9.9) | 3.9 (0.8-9.1) | P = 0.131 |
| FOXP3+ / CD8+ (%) | 6.4 (1.0-16.4) | 10.9 (5.8-7.0) | 7.0 (1.8-16.8) | P = 0.101 |
For continuous variables the median is followed by lower and upper quartiles in parenthesis. For categorical variables, numbers after percents are frequencies. Tests used:
1
Wilcoxon test
2
Fisher's exact test