Table 2.

Number of women who had completely and continuously stopped smoking from week 2 onwards

Week	No (%) on very low energy diet (n=137)	No (%) of controls (n=150)	% difference (95% CI )	P value*
2	116 (85)	98 (65)	20 (9.6 to 29.1)	0.0002
4	94 (69)	76 (51)	18 (6.8 to 29.1)	0.002
6	84 (61)	70 (47)	14 (3.2 to 26.1)	0.012
8	80 (58)	61 (41)	17 (6.3 to 29.1)	0.003
10	72 (53)	56 (37)	16 (3.8 to 26.6)	0.010
12	71 (52)	60 (40)	12 (0.36 to 23.3)	0.045
14	67 (49)	51 (34)	15 (3.6 to 26.2)	0.010
16	68 (50)	53 (35)	15 (3.0 to 25.6)	0.014
52	38 (28)	24 (16)	12 (2.2 to 21.3)	0.016

^*Pearson’s χ² test.