TABLE 3.
Comparison of 2-year cumulative prevalences of sites using complete protocols and those using partial protocols to detect bacteria of interest
| Bacterium | Patient age (yr) | Site protocolb | % of patients with FEV1 of ≥70c | Pa | % of patients with FEV1 of <70c | Pa |
|---|---|---|---|---|---|---|
| S. aureus | 6–12 | C | 57.9 (858/1,481) | 0.01 | 58.2 (153/263) | 0.04 |
| 6–12 | P | 53.6 (941/1,756) | 49.7 (175/352) | |||
| 13–17 | C | 60.6 (409/675) | NS | 60.3 (190/315) | 0.03 | |
| 13–17 | P | 58.5 (473/809) | 51.9 (196/378) | |||
| >18 | C | 54.4 (289/531) | NS | 45.9 (440/958) | 0.001 | |
| >18 | P | 51.6 (437/847) | 38.7 (561/1,451) | |||
| P. aeruginosa | 6–12 | C | 60.3 (1,260/2,088) | 0.009 | 84.2 (326/387) | NS |
| 6–12 | P | 55.6 (639/1,149) | 82.0 (187/228) | |||
| 13–17 | C | 71.5 (690/965) | NS | 89.6 (388/433) | NS | |
| 13–17 | P | 70.3 (365/519) | 87.3 (227/260) | |||
| >18 | C | 76.2 (615/807) | NS | 89.0 (861/968) | NS | |
| >18 | P | 73.0 (417/571) | 89.0 (1,278/1,441) | |||
| Mucoid P. aeruginosa | 6–12 | C | 36.1 (770/2,135) | 0.001 | 66.9 (273/408) | 0.001 |
| 6–12 | P | 28.8 (317/1,102) | 47.3 (98/207) | |||
| 13–17 | C | 49.3 (487/987) | 0.003 | 73.9 (340/460) | 0.001 | |
| 13–17 | P | 41.3 (205/497) | 52.8 (123/233) | |||
| >18 | C | 56.8 (453/797) | 0.01 | 73.1 (1,059/1,448) | 0.001 | |
| >18 | P | 50.1 (291/581) | 61.2 (588/961) | |||
| B. cepacia | 6–12 | C | 2.4 (29/1,232) | 0.03 | 5.4 (13/243) | NS |
| 6–12 | P | 1.4 (27/2,005) | 4.0 (15/372) | |||
| 13–17 | C | 3.8 (21/560) | NS | 8.4 (20/237) | NS | |
| 13–17 | P | 4.1 (38/924) | 6.8 (31/456) | |||
| >18 | C | 8.1 (47/578) | 0.01 | 9.3 (88/945) | NS | |
| >18 | P | 4.8 (38/800) | 9.1 (133/1,464) |
a
P values are for comparisons between prevalences at sites using complete protocols and sites using partial protocols. NS, not significant.
b
C, complete protocol used; P, partial protocol employed.
c
Values in parentheses are number of patients with the bacterium/total number of cultures.