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Table 7 Urine Osmolality for the Experimental group with daily PA, SRWC, and PRAL subgroup analyses (Mean (SE)).

From: Acid-base balance and hydration status following consumption of mineral-based alkaline bottled water

Experimental Condition Pre-Treatment Period Treatment Period Post-Treatment Period
  M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12
All Subjects 373 367 387 375 343 396 435 440 445 376 358 360
(n = 19) (28) (39) (47) (32) (40) (42) (41) (44) (40) (38) (31) (35)
Low PA
(n = 9)
372
(45)
390
(68)
409
(73)
403
(52)
368
(79)
379
(80)
444
(87)
451
(87)
417
(82)
426
(64)
383
(49)
420
(70)
High PA
(n = 10)
374
(36)
346
(45)
368
(63)
350
(41)
330
(56)
412
(51)
427
(48)
430
(50)
473
(45)
330
(42)
335
(40)
340
(45)
Low SRWC
(n = 9)
418
(39)
477
(58)
505
(79)
467
(41)
460
(43)
504
(47)
574
(46)
581
(45)
562
(46)
441
(59)
414
(41)
480
(70)
High SRWC
(n = 10)
333
(37)
268
(28)
281
(28)
292
(31)
238
(36)
299
(29)
310
(42)
315
(43)
332
(45)
318
(44)
308
(41)
354
(36)
Low PRAL
(n = 9)
355
(44)
342
(61)
450
(65)
343
(38)
336
(40)
362
(45)
412
(49)
419
(50)
376
(50)
345
(46)
351
(49)
413
(65)
High PRAL
(n = 10)
390
(36)
389
(51)
331
(46)
404
(51)
349
(42)
427
(44)
456
(48)
460
(45)
470
(45)
404
(61)
365
(41)
4141
(39)
  1. Note: There were a total of twelve 24-hour urine collections labeled in the table as M1-M12, respectively.
  2. Mean osmolality value differed significantly (P < 0.05) from respective mean Pre-Treatment reference value which was an average of all M1-M3 values within the condition and subject group being evaluated. These Pre-Treatment reference values were as follows: 376 (all Experimental subjects), 390 (low PA), 363 (high PA), 467 (low SRWC), 294 (high SRWC), 382 (low PRAL), and 370 mOsm/kg (high PRAL).