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Table 6 Urine Osmolality for the Control 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

Control Condition Pre-Treatment Period Treatment Period Post-Treatment Period
  M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12
All Subjects 495 424 466 450 439 470 419 448 430 480 488 425
(n = 19) (52) (42) (54) (51) (55) (42) (41) (42) (50) (54) (47) (43)
Low PA (n = 9) 509 (64) 478 (67) 483 (69) 512 (76) 515 (70) 418 (76) 461 (80) 465 (78) 445 (81) 493 (77) 468 (79) 479 (50)
High PA (n = 10) 483 (66) 375 (56) 451 (57) 394 (40) 370 (41) 516 (60) 382 (36) 370 (35) 416 (50) 461 (68) 506 (57) 467 (68)
Low SRWC (n = 9) 538 (66) 499 (55) 538 (69) 502 (60) 469 (67) 506 (71) 426 (37) 430 (36) 470 (67) 515 (61) 483 (54) 433 (52)
High SRWC (n = 10) 456 (69) 356 (56) 402 (72) 403 (69) 412 (70) 437 (50) 413 (72) 410 (70) 394 (58) 446 (69) 493 (77) 419 (69)
Low PRAL (n = 9) 466 (64) 444 (72) 495 (69) 452 (75) 457 (76) 455 (77) 398 (44) 410 (44) 441 780) 493 (74) 468 (63) 380 (59)
High PRAL (n = 10) 521 (66) 406 (49) 440 (68) 448 (72) 423 (72) 480 (60) 438 (69) 435 (60) 442 (80) 466 (69) 506 (71) 466 (62)
  1. Note: There were a total of twelve 24-hour urine collections labeled in the table as M1-M12, respectively. Mean osmolality values were compared directly with respective mean Pre-Treatment reference value which were averages of all M1-M3 values within the condition and subject group being evaluated. These Pre-Treatment reference values were as follows: 462 (all Control subjects), 490 (low PA), 436 (high PA), 525 (low SRWC), 405 (high SRWC), 468 (low PRAL), and 456 mOsm/kg (high PRAL). There were no significant differences detected for any of the evaluations.