Standard characteristics

7 12 13 14 15 16 17 18 19 http://datingranking.net/it/ios-it/ 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Fifteen studied dietary sources of calcium (n=810 calcium, n=723 controls),16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 and 51 studied calcium supplements (n=6547 calcium, n=5710 controls).7 12 13 14 15 17 19 20 21 22 26 28 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Table 1 ? shows study design and selected baseline characteristics for included studies of dietary calcium. Tables 2 and 3 show the study design and selected baseline characteristics for trials of calcium supplements, without and with additional vitamin D, respectively. ? ? Further details are in tables A-C in appendix 2. Of the 15 randomised controlled trials of dietary sources of calcium, 10 used milk or milk powder, two used dairy products, and three used hydroxyapatite preparations. Of the 51 trials of calcium supplements, 36 studied calcium monotherapy, 13 co-administered CaD, and two were multi-arm studies of both. Table 4 summarises other features of the trials ? . Most of them studied calcium without vitamin D in women aged <70 living in the community; the mean baseline dietary calcium intake was <800 mg/day; and most trials lasted ?2 years. A calcium dose of >500 mg/day was used in most trials, but a higher proportion of trials of calcium supplements used a dose of ?1000 mg/day. Table C in appendix 2 shows our assessment of risk of bias. Of the 15 trials of dietary sources of calcium, we assessed two as low risk of bias, six as moderate risk, and seven as high risk. Of the 51 trials of calcium supplements, we assessed 19 as low risk of bias, 12 as moderate risk, and 20 as high risk.

Type of randomised regulated products and you will selected baseline attributes regarding qualified examples out of calcium supplements which also made use of supplement D medications

Number one analyses

Desk 5 ? summarises the results of meta-analyses. Expanding calcium consumption off dietary provide increased BMD by the 0.6-step one.0% within total stylish and overall looks from the 12 months and of the 0.7-1.8% in the the internet sites and also the lumbar lower back and you may femoral neck at couple of years (figs step 1 and you can 2 ? ? . There’s no affect BMD during the forearm.

Fig step 1 Arbitrary consequences meta-investigation out of effectation of weight-loss types of calcium supplements to your percentage changes in bones mineral density (BMD) from baseline in the one year

Fig dos Random effects meta-data out of aftereffect of diet resources of calcium towards the payment alter when you look at the limbs mineral occurrence (BMD) away from standard within two years

Once we restricted the fresh analyses on a dozen randomised regulated trials of milk or milk products, by leaving out about three samples out-of hydroxyapatite, there was nothing change in the outcomes. Calcium increased BMD anyway four skeletal web sites by the 0.7-1.4% on 12 months (figs step 3 and you may 4 ? ? ), by 0.8-step 1.5% on 24 months (figs 5 and six ? ? ), and also by 0.8-step 1.8% at over two-and-a-half years (fig 7 ? ) (list of duration of products are three to five years).