TABLE 7.

Variations in fecal flora populations between volunteers (SDinter) and within each volunteer over time (SDlong)

Organism or groupVariationa
Mean for totalSD for totalSDinterbSDlongc
C. coccoides group10.250.440.450.22
B. fragilis group9.990.400.390.22
C. leptum subgroup9.831.341.430.30
Bifidobacterium9.211.481.550.65
Atopobium cluster9.381.231.290.30
Prevotellad9.181.721.501.11
  • a Means and standard deviations were calculated by using all 48 fecal samples collected from subjects A to F over an 8-month period.

  • b SDinter represents the difference in bacterial count between volunteers.

  • c SDlong represents change in bacterial counts within individual volunteers over time.

  • d The values were calculated from serial samples C and D.