Table 1

Comparison of group mean and individual paired clinical data of patients attending the John Hunter Hospital cystic fibrosis clinic in 1993 and 1997

Clinical characteristics		1993			1997			Group mean p value		Paired data p value
Clinical characteristics		n	Mean (SD)	Range		n	Mean (SD)			Paired data p value		Range
Age (years)	76	11.4 (7.1)	0.2 to 33.8		84	13.5 (7.8)		Group mean p value	0.4 to 37.8		0.068	NA
Height z-score	76	−0.50 (1.1)	−3.2 to 2.0		84	−0.49 (1.2)		−3.5 to 2.5		0.98	0.48
Height centile1-150	76	28	1 to 98		84	32		0.9 to 100		0.81^†	0.76^‡
Weight centile1-150	76	39.5	1 to 100		84	45		0.1 to 98		0.16^†	< 0.001^‡
Ideal weight for height (%)	76	103.9 (12.2)	72 to 135		84	104.5 (12.6)		77 to 137		0.78	0.71
FEV₁ (% predicted)	56	85.7 (23.5)	16 to 128		67	77.6 (25.2)		18 to 144		0.068	< 0.001
%FFE		ND			19	11.3 (10.8)		0.8–31			ND

↵1-150 Medians reported for non-parametric variables (height and weight centile); ^†Mann-Whitney test; ^‡Wilcoxon signed rank test on the paired difference, 1997 and 1993.
FEV₁ (%predicted), forced expiratory volume in one second as a percentage of that predicted based on age, weight, and height; % FFE, percentage of daily dietary fat intake excreted (good control of malabsorption in cystic fibrosis is < 15% FFE); ND, no data; NA, not applicable.