Table 2.
Viral genomic load (Ct values) of throat swabs by characteristic by enterovirus serotype.
| Characteristics | Ct value, median (IQR) |
|||||
|---|---|---|---|---|---|---|
| EV-A71 (N = 156) |
CV-A6 (N = 538) |
CV-A16 (N = 231) |
CV-A10 (N = 78) |
CV-A4 (N = 59) |
CV-A2 (N = 47) |
|
| Age group | ||||||
| 0–1 years | 31 (27–36) | 29 (26–33) | 29 (27–33) | 29 (26–32) | 28 (25–36) | 29 (26–32) |
| 2–14 years | 30 (27–37) | 29 (25–33) | 28 (26–31) | 26 (24–29) | 30 (25–34) | 29 (27–32) |
| P value | 0.54 | 0.73 | 0.053 | 0.023 | 0.75 | 0.78 |
| Sex | ||||||
| Male | 30 (27–35) | 29 (26–33) | 28 (26–32) | 28 (25–30) | 28 (25–39) | 29 (26–33) |
| Female | 31 (27–39) | 29 (26–33) | 29 (26–35) | 28 (26–30) | 29 (24–33) | 29 (26–31) |
| P value | 0.13 | 0.56 | 0.21 | 0.85 | 0.76 | 0.80 |
| Residence type | ||||||
| Rural | 32 (29–39) | 29 (26–33) | 30 (27–35) | 27 (25–29) | 29 (25–39) | 33 (29–34) |
| Urban | 30 (26–35) | 29 (26–33) | 28 (26–31) | 29 (25–31) | 28 (25–32) | 29 (26–31) |
| P value | 0.023 | 0.76 | 0.025 | 0.21 | 0.19 | 0.30 |
| Parents’ highest education | ||||||
| High school or below | 31 (28–37) | 29 (26–33) | 29 (26–34) | 28 (25–32) | 30 (26–33) | 31 (28–34) |
| Junior college or above | 30 (27–36) | 29 (26–33) | 28 (26–31) | 28 (24–30) | 28 (25–37) | 29 (26–32) |
| P value | 0.24 | 0.54 | 0.37 | 0.37 | 0.49 | 0.37 |
| Underlying medical conditions | ||||||
| No | 31 (27–37) | 29 (26–33) | 29 (26–32) | 28 (25–31) | 29 (25–39) | 29 (26–32) |
| Yes | 30 (29–35) | 31 (31–36) | 32 (29–35) | 26 (24–28) | 26 (25–27) | … |
| P value | 0.87 | 0.17 | 0.57 | 0.68 | 0.48 | … |
| Premature birth* | ||||||
| No | 30 (27–37) | 29 (26–33) | 28 (26–32) | 28 (25–31) | 28 (25–33) | 29 (26–32) |
| Yes | 31 (26–32) | 31 (27–38) | 30 (28–34) | 29 (27–29) | 34 (32–37) | 30 (27–33) |
| P value | 0.38 | 0.064 | 0.13 | 0.61 | 0.31 | 0.88 |
| Low birthweight† | ||||||
| No | 30 (27–37) | 29 (26–33) | 29 (26–32) | 28 (25–30) | 28 (25–33) | 29 (26–32) |
| Yes | 31 (28–34) | 32 (29–39) | 29 (28–30) | 29 (26–34) | 34 (32–37) | 31 (31–31) |
| P value | 0.78 | 0.024 | 0.62 | 0.66 | 0.31 | 0.61 |
| Major feeding ways within 6 months after birth | ||||||
| Non-breast feeding | 30 (26–34) | 28 (26–32) | 29 (27–33) | 29 (25–30) | 28 (24–31) | 31 (28–32) |
| Breastfeeding | 31 (27–37) | 29 (26–34) | 28 (26–32) | 27 (24–30) | 28 (25–39) | 29 (26–32) |
| P value | 0.30 | 0.075 | 0.16 | 0.39 | 0.49 | 0.34 |
Data were median (IQR). P-values were estimated by Wilcoxon rank-sum test. Abbreviations: Ct, cycle threshold; IQR, interquartile range.
⁎
Defined as born before 37 weeks of gestation.
†
Defined as birth weight which was below 2500 g.