Table 6.

Polychoric Correlation Coefficients Between ObsRO Dimensions and ClinRO Dimensions Scores at Baseline (N=40)

		ClinRO Scores
		Activity Level	Sleep Problems	Breathing Problem I	Breathing Problem II	Coughing	Nasal Secretion	Wheezing	Feeding Problems
ObsRO scores	Activity level	0.576	0.463	0.098	−0.068	0.370	0.066	0.148	0.388
	Sleep problems	0.199	0.196	0.183	−0.300	0.450	−0.008	−0.024	0.049
	Crying	0.132	0.316	0.066	−0.643	0.398	−0.103	−0.135	0.439
	Wheezing	−0.098	0.004	0.261	−0.196	0.056	−0.221	0.279	−0.208
	Breathing problem II	0.509	0.323	0.372	−0.480	0.442	−0.055	0.198	0.157
	Cough	0.063	0.286	0.268	−0.140	0.464	−0.005	−0.050	0.303
	Vomiting	0.991	−0.997	0.983	−0.926	−0.309	0.383	0.000	0.098
	Feeding problems	0.308	0.095	0.173	−0.286	0.491	−0.120	−0.215	0.831
	Dehydration	−0.403	0.083	0.021	−0.147	0.418	−0.399	0.257	−0.084

Note: Breathing problems I= breathing problems retractions; Breathing problems II= breathing problems: other signs. In bold are polychoric coefficient correlation above 0.4. In blue are correlations hypothesized to show the largest positive associations. In grey are polychoric correlations involving ObsRO “Vomiting” and “Dehydration” and ClinRO “Breathing problem: other signs” scores. These should be interpreted with caution as correlations involving these scores present spurious findings due to the extremely limited variability of these scores. Results for ObsRO “Cyanosis”, ObsRO “Fever”, ObsRO “Heart rate”, ObsRO “Respiration rate”, ClinRO “Cyanosis”, ClinRO “Apnea” and ClinRO “Fever” dimensions are not presented in this table due to no variability in the data and/or missing data for all patients.