Table 3.
Bivariate and multivariate analysis of factors predictive of Group A β-hemolytic Streptococcus carrier state
| Variable | GAS carrier | Unadjusted OR (95% CI) | P # | Adjusted OR (95% CI) | P ## | |
|---|---|---|---|---|---|---|
|
| ||||||
| Yes (n=28) | No (n=173) | |||||
| Tonsillar enlargement, n (%) | ||||||
| Enlarged | 21 (75) | 92 (53.2) | 2.6 (1.1-6.5) | 0.03 | 2.6 (1-6.5) | 0.03 |
| Normal | 7 (25) | 81 (46.8) | ||||
| Cervical lymphadenopathy, n (%) | ||||||
| Yes | 0 | 1 (0.5) | 1* | - | - | |
| No | 28 (100) | 172 (99.5) | ||||
| Gender, n (%) | ||||||
| Female | 14 (50) | 96 (55.5) | 0.8 (0.4-1.8) | 0.58 | - | - |
| Male | 14 (50) | 77 (44.5) | ||||
| Number of people living in the same house (people), n (%) | ||||||
| >5 | 13 (46.4) | 55 (31.8) | 1.8 (0.8-4.2) | 0.12 | 1.6 (0.7-3.8) | 0.21 |
| <5 | 15 (53.6) | 118 (68.2) | ||||
| Nutritional status, n (%) | ||||||
| Malnutrition | 6 (21.4) | 48 (27.2) | 0.7 (0.2-1.8) | 0.48 | - | - |
| Normal-overweight | 22 (78.6) | 125 (72.8) | ||||
| Economic status, n (%) | ||||||
| Low | 16 (57.1) | 114 (65.9) | 0.6 (0.3-1.5) | 0.37 | - | - |
| Middle-high | 12 (42.9) | 59 (34.1) | ||||
| Housing condition (msq), n (%) | ||||||
| <9 | 24 (85.7) | 139 (80.3) | 1.4 (0.4-4.5) | 0.5 | - | - |
| >9 | 4 (14.3) | 34 (19.7) | ||||
| Mother’s education, n (%) | ||||||
| Low | 7 (25) | 43 (24.9) | 1 (0.4-2.5) | 0.98 | - | - |
| Middle-high | 21 (75) | 130 (75.1) | ||||
| Number of sibling in the house (person), n (%) | ||||||
| >3 | 5 (17.9) | 27 (15.6) | 1.1 (0.4-3.3) | 0.76 | - | - |
| <3 | 23 (82.1) | 146 (84.4) | ||||
#Bivariate analysis: Chi-square test, *Fisher’s exact test, ##Logistic regression. GAS: Group A β-hemolytic Streptococcus, OR: Odds ratio, CI: Confidence interval