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Table 1 Frequency distribution of faecal coliforms and E. coli in water samples from all the tube wells (Source) and households (POU)

From: Occurrence of Escherichia coli and faecal coliforms in drinking water at source and household point-of-use in Rohingya camps, Bangladesh

  Faecal coliforms E. coli
Before After Household Before After Household
No. of obs. 3186 3186 6278 3186 3186 6278
Mean (SD) 552.52 (14,773.02) 343.17 (12,027.65) 16,397.2 (253,386.2) 46.73 (877.78) 23.21 (584.14) 253.53 (12,413.4)
Range (min, max) 0, 800,000 0, 700,000 0, 18,000,000 0, 27,000 0, 24,000 0, 980,000
Geometric mean (SD of log variables) 19.88 (1.02) 22.23 (0.98) 197.51 (1.56) 9.58 (0.432) 14.29 (0.317) 16.33 (0.795)