Table 1.

Description of quantitative variables (in months) of CF patients treated at the pediatric clinic at UNICAMP

Variable	N*	Minimum	Maximum	Median	Mean	Standard error	Standard deviation
Age	179	7	288	154	212.64	14.13	189.04
Onset of the manifestation	170	0	156	3	34.69	8.33	108.54
Age at diagnosis	173	0	170	24	91.47	12.44	163.60
Onset of digestive symptons	150	0	150	3	40.69	8.93	109.32
Onset of lungs symptons	165	0	156	6	42.88	9.24	118.68
1st. P. aeruginosa	131	6	180	31	102.60	15.16	173.47

*N- number of patients.