Table 3.

Internal consistency and convergent validity. The odds ratios for reporting a respiratory event given a report of another event are listed.

	Odds of Reporting Respiratory Event OR [95% CI] p-value
	Wheezing or Whistling in the Chest	Doctor Diagnosis of Wheezing	Respiratory Infection	RSV	ER visit	Hospital Admission	Inhaled Medication	Oral Steroids	Refused Feed
Wheezing or Whistling in the Chest		* p < 0.0001	4.34 [2.34, 8.06] p < 0.0001	** p < 0.0001	20.1 [5.83 – 69.3] p < 0.0001	10.0 [2.16, 46.6] p = 0.0004	26.5 [7.73, 90.7] p < 0.0001	26.9 [3.46, 209] p < 0.0001	2.75 [1.27, 5.96] p = 0.0084
Doctor Diagnosis of Wheezing			1.50 [0.523, 4.29] p = 0.4487	3.18 [0.615, 16.4] p = 0.1822	10.8 [3.63, 32.2] p < 0.0001	2.54 [0.507, 12.8] p = 0.2398	142 [17.7, 1140] p < 0.0001	9.04 [2.59, 31.6] p < 0.0001	1.90 [0.573, 6.33] p = 0.2864
Respiratory Infection				** p = 0.0020	3.92 [1.52, 10.1] p = 0.0028	*** p = 0.0005	5.07 [2.00, 12.9] p = 0.0002	13.7 [1.77, 106] p = 0.0014	1.80 [0.819, 3.96] p = 0.1395
RSV					18.1 [4.37, 75.3] p < 0.0001	7.84 [1.76, 35.0] p = 0.0191	5.66 [1.54, 20.8] p = 0.0134	18.3 [4.54, 73.7] p < 0.0002	3.93 [1.04, 14.8] p = 0.0041
ER Visit						6.30 [1.95, 20.4] p = 0.0006	16.4 [6.59, 40.6] p < 0.0001	26.3 [7.58,91.1] p < 0.0001	1.51 [0.559, 4.05] p = 0.4126
Hospitalization							23.3 [5.99, 90.8] p < 0.0001	26.8 [7.31, 98.5] p < 0.0001	1.69 [0.437, 6.50] p = 0.4323
Inhaled Medication								52.3 [11.0, 248] p < 0.0001	1.88 [0.765, 4.65] p = 0.1636
Oral Steroids									1.39 [0.369, 5.22] p = 0.7095
Refused Feed

^*Odds ratio could not be calculated because there were no infants for whom the parents reported a diagnosis of wheezing but no wheezing symptoms;

^**Odds ratio could not be calculated because there were no infants for whom the parents reported a diagnosis of RSV but no wheezing symptoms;

^***Odds ratio could not be calculated because there were no infants for whom the parents reported a respiratory hospitalization but no respiratory infection.