Table 6 Physical characteristics and exercise responses by HRCT findings 15 months after SARS diagnosis.
| Adjusted mean (SE)* | *Adjusted mean difference (95% CI) | p value | ||
|---|---|---|---|---|
| Normal HRCT scan (n = 15) | Abnormal HRCT scan (n = 12) | |||
| Resting V̇o2 (ml/min) | 224.4 (17.9) | 243.6 (18.6) | 19.2 (−35.5 to 73.8) | 0.476 |
| Respiratory quotient | 0.83 (0.02) | 0.84 (0.02) | 0.01 (−0.05 to 0.07) | 0.671 |
| Resting HR (beats/min) | 82.8 (3.0) | 80.1 (3.1) | −2.7 (−11.7 to 6.3) | 0.542 |
| Resting RR (breaths/min) | 19.7 (0.9) | 18.4 (0.9) | −1.3 (−4.1 to 1.4) | 0.325 |
| Resting V̇e (l/min) | 8.3 (0.5) | 8.2 (0.6) | −0.1 (−1.8 to 1.5) | 0.863 |
| Peak V̇o2 (ml/min) | 1665.8 (88.7) | 1754.2 (92.3) | 88.5 (−186.3 to 363.2) | 0.512 |
| Peak V̇o2 (ml/kg/min) | 30.1 (1.6) | 29.0 (1.7) | −1.1 (−6.3 to 4.1) | 0.664 |
| Peak RER | 1.2 (0.03) | 1.2 (0.03) | 0.03 (−0.06 to 0.12) | 0.473 |
| Peak HR (beats/min) | 192.0 (1.8) | 189.5 (1.8) | −2.5 (−7.9 to 2.8) | 0.334 |
| Peak O2 pulse (ml/beat) | 8.7 (0.4) | 9.2 (0.4) | 0.5 (−0.8 to 1.8) | 0.469 |
| Peak RR (breaths/min) | 48.4 (2.3) | 44.6 (2.3) | −3.8 (−10.6 to 3.0) | 0.256 |
| Peak V̇e (l/min) | 61.0 (4.8) | 61.7 (5.0) | 0.6 (−13.9 to 15.1) | 0.928 |
| Peak V̇e/V̇o2 | 36.1 (1.3) | 36.3 (1.3) | 0.2 (−3.8 to 4.3) | 0.902 |
| Peak V̇e/V̇co2 | 31.1 (0.9) | 29.5 (1.0) | −1.6 (−4.3 to 1.1) | 0.236 |
| Peto2 (mm Hg) | 113.3 (0.9) | 113.3 (1.0) | 0.02 (−2.9 to 2.9) | 0.991 |
| Petco2 (mm Hg) | 39.5 (1.0) | 40.7 (1.1) | 1.2 (−1.9 to 4.3) | 0.431 |
| VAT (ml/min) | 1033.1 (56.0) | 1023.7 (56.0) | −9.4 (−181.1 to 162.3) | 0.911 |
| OUES | 775.6 (40.4) | 820.9 (43.5) | 45.3 (−79.1 to 169.7) | 0.460 |
| Exercise time (s) | 589.2 (20.8) | 524.1 (21.6) | −65.1 (−128.9 to −1.2) | 0.046 |
*Values are adjusted for the z score of weight for age and at 6 months.
V̇o2, oxygen consumption; V̇e, minute ventilation; HR, heart rate; RER, respiratory exchange ratio; RR, respiratory rate; O2 pulse, oxygen consumption per heart beat; V̇e/V̇o2, V̇e/V̇co2, ventilatory equivalent for oxygen and carbon dioxide; Peto2, Petco2, end tidal oxygen and carbon dioxide partial pressures; VAT, ventilatory anaerobic threshold; OUES, oxygen uptake efficiency slope.