ELIZA

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357929 occurrences (No.51 in the rank) during 5 years in the PubMed. [no cache] 500 found

377) The intraclass correlation coefficient between vitamin D intakes estimated from the two-time DHQ was 0.638.

--- ABSTRACT ---

PMID:24118748 DOI:10.1111/mcn.12063

2015 Maternal & child nutrition

* Validity of a self-administered diet history questionnaire for estimating vitamin D intakes of Japanese pregnant women.

- Maternal vitamin D status is important for fetal development and the prevention of pregnancy complications. Mothers require both sufficient intakes and skin production of this vitamin. We investigated the validity and test-retest reliability of a self-administered diet history questionnaire (DHQ) to establish a method of assessing vitamin D intakes of Japanese pregnant women, using a serum marker. A total of 245 healthy pregnant women in the second trimester, who were not taking vitamin D supplements, were recruited at a university hospital in Tokyo between June 2010 and July 2011. Serum 25-hydroxyvitamin D [25(OH)D] concentrations were measured as an indicator of vitamin D status. To assess the test-retest reliability of the DHQ, 58 pregnant women completed it twice within a 4-5-week interval. Significant positive correlations between intakes and serum concentrations of vitamin D were found (r = 0.266 for daily intakes and r = 0.249 for energy-adjusted intakes). In the winter investigation in which the serum 25(OH)D concentrations were less likely to be affected by sunlight exposure, the correlation coefficients were 0.304 for both daily and energy-adjusted intakes. After excluding participants with pregnancy-associated nausea, the coefficients increased. The intraclass correlation coefficient between vitamin D intakes estimated from the two-time DHQ was 0.638. The DHQ provides an acceptable validity and reliability of the vitamin D intake of Japanese pregnant women. However, the data of women with nausea should be interpreted with caution. We believe that the DHQ is a useful questionnaire to grasp and improve vitamin D intakes during pregnancy.

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(1)48 null	(14)6 periods	(27)3 frames	(40)2 needed
(2)40 of	(15)5 frame	(28)3 on	(41)2 parameters
(3)34 and	(16)5 from	(29)3 quantitative	(42)2 pressure
(4)34 to	(17)5 period	(30)3 since	(43)2 required
(5)14 in	(18)5 physical	(31)3 taken	(44)2 spacing
(6)12 PCR	(19)5 the	(32)2 1	(45)2 spent
(7)11 was	(20)4 a	(33)2 1)	(46)2 targets
(8)10 points	(21)4 by	(34)2 PCR,	(47)2 test
(9)9 for	(22)4 or	(35)2 data	(48)2 that
(10)8 course	(23)4 reverse	(36)2 even	(49)2 use
(11)8 polymerase	(24)4 series	(37)2 interval	(50)2 used
(12)6 RT-PCR	(25)3 aerobic	(38)2 it	(51)2 will
(13)6 manner	(26)3 consuming	(39)2 maintain

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--- WordNet output for time --- =>1.時代, 季節, 歳月, 当時, 現代, 一生, 年季, 就業時間, 期間, 時刻, 時点, 機会, 拍子, 速度, 何度, 何回, 時, 時間, 回, 2.時間[速度]を測定する, 時間を決める, (装置などの)タイミングを調節する Overview of noun time The noun time has 10 senses (first 9 from tagged texts) 1. (219) time, clip -- (an instance or single occasion for some event; "this time he succeeded"; "he called four times"; "he could do ten at a clip") 2. (160) time -- (a period of time considered as a resource under your control and sufficient to accomplish something; "take time to smell the roses"; "I didn't have time to finish"; "it took more than half my time") 3. (114) time -- (an indefinite period (usually marked by specific attributes or activities); "he waited a long time"; "the time of year for planting"; "he was a great actor in his time") 4. (43) time -- (a suitable moment; "it is time to go") 5. (36) time -- (the continuum of experience in which events pass from the future through the present to the past) 6. (10) time -- (a person's experience on a particular occasion; "he had a time holding back the tears"; "they had a good time together") 7. (7) clock time, time -- (a reading of a point in time as given by a clock; "do you know what time it is?"; "the time is 10 o'clock") 8. (5) fourth dimension, time -- (the fourth coordinate that is required (along with three spatial dimensions) to specify a physical event) 9. (1) meter, metre, time -- (rhythm as given by division into parts of equal duration) 10. prison term, sentence, time -- (the period of time a prisoner is imprisoned; "he served a prison term of 15 months"; "his sentence was 5 to 10 years"; "he is doing time in the county jail") Overview of verb time The verb time has 5 senses (first 3 from tagged texts) 1. (4) clock, time -- (measure the time or duration of an event or action or the person who performs an action in a certain period of time; "he clocked the runners") 2. (3) time -- (assign a time for an activity or event; "The candidate carefully timed his appearance at the disaster scene") 3. (1) time -- (set the speed, duration, or execution of; "we time the process to manufacture our cars very precisely") 4. time -- (regulate or set the time of; "time the clock") 5. time -- (adjust so that a force is applied and an action occurs at the desired time; "The good player times his swing so as to hit the ball squarely") --- WordNet end ---