Table 1 Characteristics of selected study articles
Authors | Year | Country | Study area (urban or rural) | Study design | Age | Gender | Socio economic status | Vitamin D estimation method | Sample size (N) | Average level of vitamin D (ng/mL) | Standard deviation (S.D.) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Marwaha et al. [26] | 2005 | India | Urban | Community—CS | 10–18 y | Both | Both | RIA | 5137 | 11.8 | 7.2 |
Sahu et al. [27] | 2008 | India | Rural | Community—CS | 10–20 y | Both | Lower | RIA | 155 | 20.16 | 9 |
Mandlik et al. [28] | 2018 | India | Rural | Community—CS | 6–12 y | Both | NM | ELISA | 359 | 23.4 | 4.12 |
Kapil et al. [29] | 2017 | India | NM | Community—CS | 6–18 y | Both | Both | CLIA | 626 | 11.8 | 5.475 |
Basu et al. [30] * | 2014 | India | Both | Hospital—CS | 6–16 y | Both | NM | CLIA | 154 | 13.5 | 12.22 |
Puri et al. [31] | 2007 | India | NM | Community—CS | 6–18 y | Girls | Both | RIA | 404 | 12.748 | 6.172 |
Kadam et al. [32] | 2011 | India | NM | Community—CS | 8–12 y | Girls | Lower | RIA | 214 | 24.74 | 10.48 |
Khadgawat et al. [33] | 2013 | India | NM | Community—RCT | 10–14 y | Both | NM | CLIA | 713 | 11.69 | 5.36 |
Chaudhuri et al. [34] | 2016 | India | NM | Hospital—CC | 8–18 y | Both | NM | CMIA | 50 | 22.5 | NM |
Sharawat et al. [35] | 2019 | India | Rural | Community—CS | 5–10 y | Both | Lower | IRMA | 100 | 17.652 | 9.912 |
Marwaha et al. [36] | 2015 | India | NM | Community—CS | 10–15 y | Both | NM | CLIA | 205 | 6.3 | 4.6 |
Sarma et al. [37] | 2019 | India | Both | Community—CS | 8–14 y | Both | NM | RIA | 500 | 37.7 | 0.93 |
Sanwalka et al. [38] | 2012 | India | NM | Community—CS | 15–18 y | Girls | NM | RIA | 120 | 8.88 | 4.384 |
Mandlik et al. [39] | 2017 | India | Rural | Community—RCT | 6–12 y | Both | NM | ELISA | 106 | 23.84 | 4.44 |
Borker et al. [40] | 2009 | India | NM | Hospital—CC | 6–12 y | Both | NM | HPLC | 50 | 26.16 | 12.28 |
Garg et al. [41] | 2013 | India | Urban | Community—CS | Mean age 14 y | Both | NM | RIA | 1829 | 8.3 | 5.2 |
Khadilkar et al. [42] | 2012 | India | NM | Community—CS | 8–12 y | Girls | Lower | RIA | 214 | 24.73 | 10.65 |
Patel et al. [43] | 2015 | India | NM | Community—CS | 10–14 y | Both | Both | CMIA | 181 | 17.7 | 6.7 |
Marwaha et al. [44] | 2017 | India | NM | Community—CS | 6–18 y | Girls | NM | CLIA | 847 | 9.9 | 5.6 |
Prasad et al. [45] | 2016 | India | NM | Hospital—CC | < 3 y | Both | NM | ELISA | 61 | 31 | 8.7 |
Agarwal et al. [46] | 2012 | India | NM | Hospital—CS | NM | Both | NM | RIA | 336 | 6.15 | NM |
Basu et al. [30] * | 2014 | India | Both | Hospital—CS | 1–5y | Both | Lower | CLIA | 156 | 23 | 16.29 |
Wayse et al. [47] | 2003 | India | NM | Hospital—CC | 2 m–5 y | Both | Middle | RIA | 70 | 15.36 | NM |
Filteau et al. [48] | 2015 | India | NM | Community—CS | Mean age 5 y | Both | Lower | RIA | 902 | 13.08 | 9.2 |
Taru et al. [49] | 2015 | India | NM | Hospital—CC | NM | Both | NM | NM | 50 | 7.25 | 6.29 |
Sreedharan et al. [50] | 2018 | India | NM | Hospital—CC | 2–13 y | Both | NM | ELISA | 109 | 30.1 | 23.42 |
Agarwal et al. [51] | 2010 | India | Urban | Hospital—CS | 10 weeks | Both | Lower | RIA | 97 | 10.47 | 6.74 |
Mathur et al. [52] | 2016 | India | NM | Hospital—RCT | NM | Both | NM | ECLIA | 50 | 12.65 | 10 |
Kumar et al. [53] | 2011 | India | NM | Hospital—RCT | 6 months | Both | NM | RIA | 237 | 14.4 | 10.2 |
Marwaha et al. [54] | 2011 | India | NM | Hospital—CS | 6 weeks | Both | Lower | RIA | 342 | 8.92 | 4.2 |
Agrawal et al. [55] | 2019 | India | Both | Hospital—CC | 3 d–21 d | Both | NM | CLIA | 50 | 14.88 | 7.2 |
Shukla et al. [56] | 2016 | India | NM | Hospital—CS | < 20 y | Both | NM | ECLIA | 73 | 14.115 | 7.725 |
Schulze et al. [57] | 2014 | Nepal | Rural | Community—RCT | 6–8 y | Both | NM | CIA | 1000 | 26.52 | 7.4 |
Haugen et al. [58] | 2016 | Nepal | Urban | Community—CS | 1–12 m | Both | NM | LCMS | 466 | 32.8 | 8.56 |
Avagyan et al. [59] | 2015 | Nepal | Rural | Community—CS | 1 y–5 y | Both | NM | LCMS | 280 | 12.6 | 4.8 |
Marasinghe et al. [60] | 2015 | Sri Lanka | Urban | Community—CS | 2–5 y | Both | NM | CLIA | 340 | 23.5 | 8.97 |
Hettiarachchi et al. [61] | 2010 | Sri Lanka | NM | Hospital—CS | 3–5 y | Both | NM | IRMA | 248 | 33.71 | 14.1 |
Hettiarachchi et al. [62] | 2011 | Sri Lanka | NM | Hospital—CS | 3–5 y | Both | NM | IRMA | 105 | 24.78 | 0.66 |
Anwar et al. [63] | 2015 | Pakistan | Both | Community—CS | NM | Both | Lower | CLIA | 227 | 9.884 | 7.334 |
Karim et al. [64] | 2010 | Pakistan | NM | Hospital—CS | NM | Both | Both | NM | 50 | 20.4 | 10.99 |
Ahmed et al. [65] | 2015 | Bangladesh | Urban | Community—CS | 0.5–2 y | Both | Both | EIA | 913 | 21.86 | 16.67 |
Holland et al. [66] | 2007 | Afghanistan | NM | Community—CS | 0.5–5 y | Both | NM | HPLC | 107 | 5 | NM |