Recommended sleep duration is associated with higher consumption of fruits and vegetables; cross-sectional and prospective analyses from the UK Women’s Cohort Study

Table 3 Prospective associations between sleep duration categories and FV intakes of women from the UKWCS

Short sleepers (≤6 h/d) and Long sleepers (≥9 h/d) compared to the recommended group (7–9 h/d)
Models	Model 1						Model 2
	≤6 h/d sleep Mean difference (95% CI)	P value	≥9 h/d sleep Mean difference (95% CI)	P value	n	Overall P value^*	≤6 h/d sleep Mean difference (95% CI)	P value	≥9 h/d sleep Mean difference (95% CI)	P value	n	Overall P value^*
Fruits and vegetables (grams/day)^a
Fruits	− 47 (− 88,-5)	0.02	− 8 (− 56, 38)	0.7	454	0.08	− 33 (− 76,9)	0.1	−5 (− 55, 44)	0.8	440	0.3
Vegetables	−44 (−76,-12)	0.006	−9 (− 46,26)	0.5	462	0.02	−44 (−77,-11)	0.008	−22 (−60,15)	0.2	448	0.01
Total FV	−98 (−155,-41)	0.001	−21 (−87,44)	0.5	463	0.003	−85 (−144,-26)	0.005	−30 (−98,38)	0.3	449	0.01
Fruits and vegetables(servings/week)^b
Fruits	− 0.6 (− 2, 0.6)	0.3	− 1 (− 3,-0.2)	0.02	2162	0.05	− 0.4 (− 1, 0.8)	0.5	−1 (− 2,0.02)	0.05	2087	0.1
Vegetables	−0.6 (−1, 0.7)	0.3	−-0.6 (− 2,0.8)	0.4	2169	0.5	− 0.4 (− 1, 0.9)	0.5	− 0.7 (− −2, 0.8)	0.3	2094	0.5
Total FV	−1 (−3, 0.7)	0.2	−2 (− 4,0.1)	0.06	2167	0.1	−0.9 (−3, 1)	0.3	− 2 (− 4, 0.2)	0.07	2092	0.1

Model 1 adjusted for age
Model 2 adjusted for age, socio-economic status, smoking, ethnicity and total energy intake
CI confidence interval, d day, FV fruits and vegetables, G gram, h hours, n number
^*P value for differences between sleep duration categories
^aobtained from 4-day food diary
^bobtained from health and lifestyle questionnaire

ISSN: 2398-2683