Table 1.

Indicators of dietary attendance by intervention group [mean (standard deviation)]

	Low‐carbohydrate diet	Low‐fat diet	P‐value*
Percent attendance at dietary sessions
By session
Individual	96.7 (11.9)	98.3 (6.4)	0.30
Biweekly group	55.1 (27.7)	50.4 (29.1)	0.32
Monthly group	32.8 (31.1)	24.7 (28.5)	0.10
By time
3 months	80.8 (17.2)	80.7 (16.8)	0.95
6 months	67.0 (20.6)	64.1 (21.0)	0.40
12 months	56.7 (21.7)	52.3 (21.1)	0.21
Percent ketone positive
3 months	31 (28)	9 (12)	<0.001
6 months	27 (26)	8 (10)	<0.001
12 months	25 (22)	8 (8)	<0.001
Composite adherence score†
3 months	51.8 (11.4)	49.3 (12.2)	0.23
6 months	53.1 (11.2)	51.4 (12.2)	0.46
12 months	55.9 (13.6)	54.1 (12.9)	0.48

^* All P‐values for comparisons were from Student's t‐test.

^† Composite adherence score was based on attendance at dietary session, deviation from macronutrient goals and ketone presence.