Table 3. Proportion of infants reporting FGIDs, according to the different types of disorder and low birth weight groups.
| Variable | ELBW (n=35) | VLBW (n=88) | LBW (n=167) | Total (n=290) | p-value* | p-value† | p-value‡ | p-value§ | |
|---|---|---|---|---|---|---|---|---|---|
| Regurgitation | 20 (57.1) | 41 (46.6) | 68 (40.7) | 129 (44.5) | 0.184 | 0.291 | 0.368 | 0.075 | |
| Infant colic | 23 (65.7) | 55 (62.5) | 91 (54.5) | 169 (58.3) | 0.297 | 0.738 | 0.219 | 0.223 | |
| Functional diarrhea | 2 (5.7) | 2 (2.3) | 4 (2.4) | 8 (2.8) | 0.522 | 0.320 | 1.000 | 0.278 | |
| Infant dyschezia | 18 (51.4) | 25 (28.4) | 58 (34.7) | 101 (34.8) | 0.054 | 0.016 | 0.306 | 0.064 | |
| Functional constipation | 10 (28.6) | 23 (26.1) | 41 (24.6) | 74 (25.5) | 0.873 | 0.783 | 0.781 | 0.619 | |
| At least one FGID | 34 (97.1) | 80 (90.9) | 132 (79.0) | 246 (84.8) | 0.003 | 0.443 | 0.016 | 0.011 | |
| Number of FGIDs diagnosis | 0.167 | 0.042 | 0.533 | 0.143 | |||||
| 1 | 6 (17.7) | 34 (42.5) | 47 (35.6) | 87 (35.4) | |||||
| 2 | 18 (52.9) | 27 (33.8) | 46 (34.9) | 91 (37.0) | |||||
| 3 | 9 (26.5) | 18 (22.5) | 33 (25.0) | 60 (24.4) | |||||
| 4 | 1 (2.9) | 1 (1.2) | 6 (4.5) | 8 (3.2) | |||||
Values are presented as number (%).
FGID: functional gastrointestinal disorders, ELBW: extremely low birth weight, VLBW: very low birth weight, LBW: low birth weight.
*Comparison between ELBW, VLBW and LBW patients. †Comparison between ELBW and VLBW patients. ‡Comparison between VLBW and LBW patients. §Comparison between ELBW and LBW patients.