HEI calculation:
By summing the sub scores in 13 categories, the total HEI score is
calculated: (the score range in parentheses): total vegetables (0–5),
greens and beans (0–5), total fruit (0–5), whole fruit (0–5), whole
grains (0–10), total dairy (0–10), total protein (0–5), seafood and
plant protein (0–5), fatty acids (0–10), sodium, refined grains
(0–10), and “empty” calories from solid fats, alcohol, and added
sugars (0–20). A better score, shows a better dietary quality(22).
DASH score calculation:
DASH score, reward points for high intakes of five food groups, such as
fruits, vegetables, nuts and seeds and legumes, low-fat dairy products
and whole grains, according to quantiles ranking (i.e., participants in
the lowest quintiles receive 1 point, those in the 2nd, 3rd, and 4th
quintiles receive 2, 3, and 4 points respectively, and the highest
quintiles, 5 points). Intakes of sodium, sweetened beverages, red meat
and processed meat had the lowest score (i.e., the lowest quintiles are
assigned 5 points and the highest quintiles, 1 point)(23).
Sleep quality
measurements:
To assess the sleep quality, The Pittsburg questionnaire (PSQI) was
used. The Pittsburg questionnaire has 7 scales that include mental
quality of sleep (ration of duration of useful sleep from time spent in
bed), sleep disorders (waking up at night), dose of medicine measures
sleep deprivation and dysfunction. The score of each scale is between
0-3 and the score of 3 in each scale determines the maximum negative.
The overall score of this questionnaire is 0 to 21 and the overall score
of 6 and above indicates the inadequacy of sleep quality.