Table 3.

The association of eating habits with glycemic control and BMI (primary analysis set)

Question	Answer	HbA1c			BMI
		n % [95% CI]			n % [95% CI]
		<7.0%	≥7.0%	P-value	<25 kg/m2	≥25 kg/m2	P-value
Eating supper within 2 hours of bedtime Skipping breakfast	No	10,541	9,717		9,406	10,852
		52.0 [51.3, 52.7]	48.0 [47.3, 48.7]		46.4 [45.7, 47.1]	53.6 [52.9, 54.3]
	Yes	5,282	6,182		4,249	7,215
		46.1 [45.2, 47.0]	53.9 [53.0, 54.8]	<0.001	37.1 [36.2, 38.0]	62.9 [62.0, 63.8]	<0.001
	No	13,995	13,478		12,246	15,227
		50.9 [50.3, 51.5]	49.1 [48.5, 49.7]		44.6 [44.0, 45.2]	55.4 [54.8, 56.0]
	Yes	1,828	2,421		1,409	2,840
		43.0 [41.5, 44.5]	57.0 [55.5, 58.5]	<0.001	33.2 [31.7, 34.6]	66.8 [65.4, 68.3]	<0.001
Eating snacks after supper	No	13,732	13,396		12,087	15,041
		50.6 [50.0, 51.2]	49.4 [48.8, 50.0]		44.6 [44.0, 45.1]	55.4 [54.9, 56.0]
	Yes	2,091	2,503		1,568	3,026
		45.5 [44.1, 47.0]	54.5 [53.0, 55.9]	<0.001	34.1 [32.8, 35.5]	65.9 [64.5, 67.2]	<0.001
Fast eatinga	No	9,875	9,900		9,424	10,351
		49.9 [49.2, 50.6]	50.1 [49.4, 50.8]		47.7 [47.0, 48.4]	52.3 [51.6, 53.0]
	Yes	5,948	5,999		4,231	7,716
		49.8 [48.9, 50.7]	50.2 [49.3, 51.1]	0.799	35.4 [34.6, 36.3]	64.6 [63.7, 65.4]	<0.001
Fast eatingb	No	8,636	8,614		8,120	9,130
		50.1 [49.3, 50.8]	49.9 [49.2, 50.7]		47.1 [46.3, 47.8]	52.9 [52.2, 53.7]
	Yes	5,948	5,999		4,231	7,716
		49.8 [48.9, 50.7]	50.2 [49.3, 51.1]	0.643	35.4 [34.6, 36.3]	64.6 [63.7, 65.4]	<0.001

Notes:

^aNo = Normal + Slow; Yes = Fast;

^bNo = Normal; Yes = Fast. P-values for the difference in proportion of workers with or without HbA1c ≥7.0% or BMI ≥25 kg/m² were determined by Fisher’s exact test.

Abbreviation: BMI, body mass index; HbA1c, glycated hemoglobin.