TABLE 1.

Effect of age and sex on the distribution of MAC types

Infection type	No. of patients by age (yr) and sexa
	≤19			20-39			40-59			≥60
	M	F	Both	M	F	Both	M	F	Both	M	F	Both
M. avium I	2	5	7	43	34	77	19	4	23	2	6	8
M. avium II	1	0	1	6	5	11	0	1	1	0	0	0
M. avium III	0	0	0	0	0	0	0	0	0	1	0	1
Total M. avium	3	5	8	49	39	88	19	5	24	3	6	9
M. intracellulare I	1	0	1	4	1	5	3	5	8	18	14	32
M. intracellulare IV	0	0	0	3	4	7	2	2	4	1	2	3
Total M. intracellulare	1	0	1	7	5	12	5	7	12	19	16	35

^aF, female; M, male.