Table 3 Mean rate of sustainability (per 100 opportunities) by month of study and intervention group

High intensity high frequency (95% CI)

44.2 (37.7 to 50.8)

41.0 (33.9 to 48.1)

48.7 (40.9 to 56.5)

52.7 (45.0 to 60.4)

56.5 (48.5 to 64.4)

56.1 (47.6 to 64.6)

58.7 (50.5 to 66.9)

59.5 (50.9 to 68.2)

58.9 (50.3 to 67.5)

61.4 (52.8 to 70.1)

62.3 (53.4 to 71.1)

64.1 (55.0 to 73.2)

High intensity low frequency (95% CI)

47.2 (41.8 to 52.6)

47.6 (41.9 to 53.3)

44.9 (38.7 to 51.2)

42.2 (36.0 to 48.4)

39.5 (33.1 to 45.9)

39.0 (32.2 to 45.8)

36.5 (30.0 to 43.2)

36.7 (29.7 to 43.6)

36.6 (29.6 to 43.6)

40.4 (33.3 to 47.5)

38.6 (31.3 to 45.9)

37.3 (29.8 to 44.8)

Low intensity high frequency (95% CI)

43.9 (38.0 to 49.7)

40.2 (33.8 to 46.6)

39.8 (32.7 to 47.0)

32.8 (25.7 to 40.0)

32.4 (24.9 to 39.8)

32.2 (24.2 to 40.1)

32.2 (24.5 to 39.9)

30.8 (22.6 to 39.0)

32.8 (24.5 to 41.1)

32.1 (23.6 to 40.7)

33.9 (25.1 to 42.8)

32.6 (23.5 to 41.7)

Low intensity low frequency (95% CI)

40.7 (35.2 to 46.2)

41.7 (35.7 to 47.7)

46.2 (39.6 to 52.8)

44.3 (37.8 to 50.8)

40.9 (34.1 to 47.7)

37.6 (30.4 to 44.8)

36.9 (29.9 to 44.0)

35.9 (28.4 to 43.3)

35.4 (27.9 to 43.0)

37.2 (29.4 to 44.9)

39.6 (31.6 to 47.5)

41.4 (33.2 to 49.6)

Pvalue^a

0.43

0.30

0.39

0.003

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001