Table 2.
Characterization of pneumotypes
| Pneumotype I | Pneumotype II | Pneumotype III | Pneumotype IV | Pneumotype V | |
|---|---|---|---|---|---|
| One week, n | One week, n | 87 | 51 | 24 | 85 |
| Age at sampling in days, mean ± sd | 8.1 ± 2.7 | 8.0 ± 3.7 | 7.6 ± 2.8 | 7.8 ± 3.0 | 8.0 ± 3.1 |
| SDI, mean ± sd | 0.83 ± 0.51 | 1.31 ± 0.42 | 0.78 ± 0.49 | 1.57 ± 0.63 | 1.74 ± 0.46 |
| Observed Richness, mean ± sd | 21.5 ± 11.4 | 24.3 ± 8.2 | 19.0 ± 8.0 | 23.4 ± 11.5 | 25.8 ± 9.6 |
| Exclusively breastfed, n(%) | 266 (90.8%) | 72 (83.7%) | 47 (92.2%) | 20 (83.3%) | 72 (86.7%) |
| Any antibiotic, n(%) | 3 (1.0%) | 2 (2.4%) | 1 (2.0%) | 1 (4.2%) | 4 (4.9%) |
| Caesarean section, n(%) | 66 (22.2%) | 13 (14.9%) | 8 (15.7%) | 1 (4.2%) | 21 (24.7%) |
| Siblings, n(%) | 163 (55.1%) | 47 (54.0%) | 39 (76.5%) | 12 (50.0%) | 60 (70.6%) |
| Mother asthmatic, n(%) | 76 (25.7%) | 20 (23.0%) | 17 (33.3%) | 6 (25.0%) | 25 (29.4%) |
| Male, n(%) | 152 (51.2%) | 47 (54.0%) | 27 (52.9%) | 13 (54.2%) | 35 (41.2%) |
| One month, n | 137 | 211 | 89 | 53 | 131 |
| Age at sampling in days, mean ± sd | 31.3 ± 4.7 | 32.6 ± 5.3 | 32.2 ± 5.8 | 31.1 ± 3.7 | 32.5 ± 5.6 |
| SDI, mean ± sd | 0.87 ± 0.55 | 1.41 ± 0.48 | 0.77 ± 0.42 | 1.40 ± 0.48 | 1.64 ± 0.43 |
| Observed Richness, mean ± sd | 22.5 ± 13.2 | 29.1 ± 10.8 | 19.1 ± 7.2 | 22.3 ± 8.8 | 30.5 ± 14.5 |
| Exclusively breastfed, n(%) | 96 (70.1%) | 152 (72.7%) | 76 (85.4%) | 41 (78.8%) | 108 (83.1%) |
| Any antibiotic, n(%) | 3 (2.2%) | 8 (3.8%) | 3 (3.5%) | 6 (11.8%) | 3, (2.3%) |
| Caesarean section, n(%) | 41 (29.9%) | 47 (22.3%) | 11 (12.4%) | 18 (34.0%) | 20 (15.3%) |
| Siblings, n(%) | 68 (49.6%) | 98 (46.4%) | 72 (80.9%) | 23 (43.4%) | 99 (76.2%) |
| Mother asthmatic, n(%) | 37 (27.2%) | 59 (28.1%) | 26 (29.5%) | 14 (26.4%) | 27 (20.6%) |
| Male, n(%) | 69 (50.4%) | 114 (54.0%) | 46 (51.7%) | 30 (56.6%) | 61 (46.6%) |
| Three months Samples, n | 54 | 196 | 165 | 30 | 178 |
| Age at sampling in days, mean ± sd | 93.0 ± 5.9 | 92.9 ± 6.3 | 92.6 ± 7.1 | 91.7 ± 4.6 | 93.9 ± 6.6 |
| SDI, mean ± sd | 1.24 ± 0.53 | 1.47 ± 0.50 | 0.97 ± 0.51 | 1.72 ± 0.43 | 1.80 ± 0.47 |
| Observed Richness, mean ± sd | 31.6 ± 10.1 | 34.4 ± 12.1 | 24.39 ± 10.5 | 28.7 ± 11.3 | 35.0 ± 13.4 |
| Exclusively breastfed, n(%) | 34 (64.2%) | 65.5% (127) | 66.2% (102) | 20 (66.7%) | 111 (65.7%) |
| Any antibiotic, n(%) | 2 (3.8%) | 13 (6.8%) | 5 (3.3%) | 0 (0.0%) | 15 (8.9%) |
| Caesarean section, n(%) | 13 (24.1%) | 46 (23.5%) | 28 (17.0%) | 9 (30.0%) | 34 (19.1%) |
| Siblings, n(%) | 14 (26.4%) | 85 (43.4%) | 126 (76.4%) | 13 (43.3%) | 116 (65.2%) |
| Mother asthmatic, n(%) | 14 (25.9%) | 47 (24.1%) | 46 (28.0%) | 5 (16.7%) | 51 (28.8%) |
| Male, n(%) | 29 (53.7%) | 99 (50.5%) | 86 (52.1%) | 9 (30.0%) | 92 (51.7%) |