Table 2 Prevalence of hypoxemia (resting room air SpO2 <90%) at Kapiri District Hospital. P-value represents probability of obtaining the observed value due to random chance under the null hypothesis that prevalence of hypoxemia is less than 1%, using a one-sided, one-sample test of proportions at α = 0.05
Age group | Prevalence of hypoxemia (%) | 95% confidence interval of proportion | P-value |
|---|---|---|---|
All ages | 7.8 | (3.8, 14.6) | <0.0001 |
<5 years | 7.4 | (1.1, 13.5) | <0.0001 |
5–17 years | 0.0 | (0.0, 0.0) | 0.652 |
≥18 years | 9.2 | (3.8, 14.5) | <0.001 |