TABLE D-3 Daily Magnesium Intake (mg): Mean, standard error of the mean, selected percentiles, and associated standard errors for usual intake

 

Percentile

Sex/Age Category

n

Mean

1st

5th

10th

25th

50th

75th

90th

95th

99th

0-6 mo

69

57.8

12

21

27

39

55

73

93

105

131

SE

 

5.9

4.7

5.2

5.3

5.2

5.4

7.6

12.5

17.2

30

7-12 mo

45

112.7

46

61

70

86

109

134

161

179

216

SE

 

10.4

6.7

6.9

7.3

8.7

10.8

13.1

15.5

17.4

22.1

1-3 y

702

183.4

80

106

121

148

180

215

250

274

323

SE

 

2.6

3.3

3.0

2.9

2.7

2.6

3.2

4.6

5.9

9.4

4-8 y

666

211.5

102

128

143

171

205

245

287

315

377

SE

 

4

4.0

3.2

2.9

2.9

3.8

5.3

7.3

8.9

12.9

M 9-13 y

180

271

106

140

161

203

258

325

397

445

548

SE

 

12.0

9.5

9.8

10.1

10.7

11.9

14.6

19.2

23.5

35.1

M 14-18 y

191

315.6

132

168

191

236

298

376

462

522

656

SE

 

12.0

6.7

7.4

8.1

9.6

11.8

14.9

19.9

24.5

38.0

M 19-30 y

328

343.1

144

185

211

261

328

408

495

553

679

SE

 

13.1

7.1

7.9

8.8

10.8

13.4

16.1

19.3

22.4

32.2

M 31-50 y

627

341.2

149

194

220

268

329

401

477

529

645

SE

 

8.6

8.0

7.0

7.7

9.2

8.6

12.1

15.3

18.3

31.5

M 51-70 y

490

304.9

130

169

193

238

295

362

429

474

566

SE

 

8.4

6.3

6.6

6.9

7.3

8.2

10

12.5

14.6

21.3

M >70 y

237

282.1

123

160

182

223

275

333

392

429

507

SE

 

7.5

6.1

6.3

6.4

6.9

7.8

9.2

11.6

13.9

20.0

F 9-13 y

200

229.5

111

142

159

188

223

263

307

339

412

SE

 

7.8

8.6

8.4

8.4

8.3

8.3

8.8

10.5

12.2

18.0

F 14-18 y

169

224.5

90

123

142

175

217

266

318

352

423

SE

 

9.0

9.4

10.5

10.0

9.4

10.6

11.2

11.6

12.1

19.7

F 19-30 y

302

210.6

89

118

135

166

205

250

293

322

379

SE

 

8.8

6.0

6.3

6.6

7.4

8.7

10.7

13.3

15.2

19.8

F 31-50 y

590

236.1

100

133

152

187

229

278

329

363

437

SE

 

4.5

5.5

5.5

6.0

4.9

4.0

7.4

9.7

11.9

28.8

F 51-70 y

510

238.5

110

141

159

191

231

277

327

362

438

SE

 

6.5

5.3

4.7

4.6

4.8

6.0

8.2

10.8

12.6

16.6

F >70 y

221

209.4

89

118

136

167

206

248

288

314

365

SE

 

6.7

6.9

6.5

6.4

6.3

6.7

8.0

10.5

12.7

18.5

8 y and under

1482

190.3

59

91

110

144

184

230

278

310

379

SE

 

2.7

4.2

3.5

3.1

2.5

2.5

3.5

5.1

6.3

9.7

M 9+ y

2053

323.6

135

177

202

249

310

384

462

516

634

SE

 

5.5

4.4

4.5

4.7

5.0

5.5

6.4

8.0

9.7

15.2

F 9+ y

1992

228.1

104

134

152

184

222

266

311

342

407

SE

 

2.7

3.0

2.5

2.3

2.2

2.5

3.5

4.9

6.1

9.5

F Pregnanta

33

292.5

144

187

210

249

292

336

375

399

444

SE

 

23.4

28.8

26.1

25.5

23.5

24.3

30.7

31.6

30.6

40.0

F Lactatinga

16

316.8

218

244

259

285

315

347

377

396

433

SE

 

58.1

37.5

43.7

47.3

53.5

59.7

64.9

69.3

72.3

79.5

All Indiv (+P/L)

5576

263.9

90

128

151

193

248

318

396

452

578

SE

 

3.0

1.6

1.5

1.6

2.0

2.9

4.0

5.4

6.7

10.7

NOTE: n represents the actual unweighted sample size in each group. Estimates were obtained using C-SIDE v1.0 (C-SIDE courtesy of Iowa State University Statistical Laboratory). Standard errors (SE) were estimated via jackknife replication. Each standard error has 43 d.f.

a These estimates are less reliable due to extremely small sample size.



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