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Table 1 Characteristics of study participants

From: Association between weight loss, change in physical activity, and change in quality of life following a corporately sponsored, online weight loss program

  All (N = 26,658) Women (n = 20,992) Men (n = 5666)
Mean (SD) Mean (SD) Mean (SD)
Age (y) 53.8 (9.8) 53.6 (10.2) 54.5 (9.6)
Classes attended a 9.9 (0.3) 9.9 (0.3) 9.9 (0.3)
Pre-program weight (kg) 93.5 (19.4) 90.6 (18.7) 104.4 (17.9)
Post-program weight (kg) 89.2 (18.8) 86.6 (18.3) 98.8 (17.5)
Weight change (kg) −4.3 (3.2) −4.0 (3.0) −5.5 (3.6)
[95% CI −4.35, − 4.26] [95% CI − 4.01, −3.93] [95% CI − 5.60, − 5.45]
Weight change (%) −4.6 (3.3) −4.4 (3.3) −5.3 (3.4)
[95% CI −4.61, − 4.56] [95% CI − 4.46, − 4.37] [95% CI −5.41, − 5.23]
  N (%) N (%) N (%)
Change in Weight
  < 3.0% 9319 (35.0) 7742 (36.9) 1577 (27.8)
 3.0–4.9% 6535 (24.5) 5236 (24.9) 1299 (22.9)
  ≥ 5.0% 10,804 (40.5) 8014 (38.2) 2790 (49.2)
Change in Energy
 Very much improved 1959 (7.4) 1565 (7.5) 394 (7.0)
 Improved 15,006 (56.3) 11,687 (55.7) 3319 (58.6)
 No change 9433 (35.4) 7528 (35.8) 1905 (33.6)
 Worsened 260 (1.0) 212 (1.0) 48 (0.9)
Change in Mood
 Very much improved 2121 (8.0) 1731 (8.3) 390 (6.9)
 Improved 14,675 (55.1) 11,588 (55.2) 3087 (54.5)
 No change 9509 (35.7) 7388 (35.2) 2121 (37.4)
 Worsened 353 (1.3) 285 (1.4) 68 (1.2)
Change in Sleep
 Very much improved 839 (3.2) 682 (3.2) 157 (2.8)
 Improved 7939 (29.8) 6293 (30.0) 1646 (29.0)
 No change 17,341 (65.1) 13,584 (64.7) 3757 (66.3)
 Worsened 539 (2.0) 433 (2.1) 106 (1.9)
Change in Self-Confidence
 Very much improved 2648 (9.9) 2160 (10.3) 488 (8.6)
 Improved 14,644 (54.9) 11,546 (55.0) 3098 (54.7)
 No change 9082 (34.1) 7046 (33.6) 2036 (35.9)
 Worsened 284 (1.1) 240 (1.1) 44 (0.8)
Change in Indigestion b
 Very much improved 1124 (16.2) 893 (15.2) 231 (21.6)
 Improved 3584 (51.7) 3062 (52.2) 522 (48.8)
 No change 2128 (30.7) 1816 (31.0) 312 (29.2)
 Worsened 96 (1.4) 91 (1.6) 5 (0.5)
Change in MSK Pain c
 Very much improved 292 (3.4) 222 (3.2) 70 (4.7)
 Improved 3060 (36.0) 2473 (35.3) 587 (39.5)
 No change 4970 (58.5) 4165 (59.4) 805 (54.1)
 Worsened 176 (2.1) 150 (1.8) 26 (1.8)
Change in PA
 Quite a bit more 4383 (16.4) 3400 (16.2) 983 (17.4)
 Slightly more 14,290 (53.6) 11,331 (54.0) 2959 (52.2)
 No change 7526 (28.3) 5891 (28.1) 1635 (28.9)
 Slightly less 368 (1.4) 296 (1.4) 72 (1.3)
 Much less 91 (0.3) 74 (0.4) 17 (0.3)
  1. Data are mean (SD) and N (%) unless stated otherwise
  2. a The program consisted of 10 weekly classes, and participants who completed ≥8 classes were included in the analyses
  3. b 6932 participants (5862 women, 1070 men) reported indigestion at baseline
  4. c 8498 participants (7010 women, 1488 men) reported musculoskeletal pain at baseline
  5. Abbreviations: MSK musculoskeletal, PA physical activity; SD standard deviation