Table 2

Preoperative health-related characteristics of SCOTS participants undergoing bariatric surgery (N=249)

N=249
N (%)
Missing
N (%)
Comorbidity, self-reportDVT8 (3.2)0
Pulmonary embolism4 (1.6)0
Hypertension107 (43.0)0
T2D124 (49.8)0
Angina/heart attack17 (6.8)0
Heart failure2 (0.8)0
Stroke/ministroke6 (2.4)0
Arthritis73 (29.3)0
Back problems115 (46.2)0
Chronic bronchitis4 (1.6)0
Eczema/psoriasis33 (13.3)0
Asthma70 (28.1)0
Thyroid problems32 (12.9)0
Migraine49 (19.7)0
Anxiety/depression114 (45.8)0
Kidney disease7 (2.8)0
Liver disease2 (0.8)0
Cancer4 (1.6)0
Irritable bowel syndrome44 (17.7)0
Sleep apnoea66 (26.5)0
CVD20 (8.0)0
N (%), self-reported comorbiditiesNone9 (3.6)0
1–280 (32.1)0
≥3160 (64.3)0
Gastro-oesophageal refluxYes97 (40.4)9 (3.6)
Female reproductive health, N=75*Mean (SD) age in years, last natural menstrual period39.4 (10.9)4 (5.3)
Female reproductive health, N=177PCOS, N (%)28 (16.8)10 (5.6)
Male reproductive health,
N=72
Impotence, N (%)28 (41.2)4 (5.6)
IPSS score ≥8, N (%)34 (47.9)1 (1.4)
IncontinenceMedian (Q1; Q3) ICIQ-UI SF score4 (0.0; 10.0)10 (4.0)
ICIQ-UI SF score ≥6105 (43.9)10 (4.0)
Incontinence, females,
N=177
ICIQ-UI SF score ≥6, N (%)83 (49.4)9 (5.1)
Incontinence, males,
N=72
ICIQ-UI SF score ≥6, N (%)22 (31.0)1 (1.4)
DepressionMean (SD) PHQ-9 score9.6 (6.3)5 (2.0)
N (%) PHQ-9 score ≥10107 (43.9)5 (2.0)
AnxietyMedian (Q1; Q3) GAD-75 (2.0; 9.0)6 (2.4)
N (%) GAD-7 score ≥6114 (46.9)6 (2.4)
Smoking statusCurrent13 (5.4)9 (3.6)
Former105 (43.8)
Never122 (50.8)
Alcohol useMedian (Q1; Q3) AUDIT3 (1.0; 6.0)20 (8.0)
Quality of life
SF-12Mean (SD) PCS37 (11.4)13 (5.2)
Mean (SD) MCS45.5 (10.3)13 (5.2)
EQ-5D-5LMedian (Q1; Q3)0.6 (0.3; 0.8)12 (4.8)
Mean (SD) VAS55.3 (22.1)12 (4.8)
IWQOL-Lite
(standardised scoring)
Mean (SD) physical function56.9 (25.4)6 (2.4)
Mean (SD) self-esteem70.7 (27.1)7 (2.8)
Mean (SD) sexual life57.1 (31.7)18 (7.2)
Mean (SD) public distress58.1 (27.2)6 (2.4)
Mean (SD) work43.6 (29.2)13 (5.2)
Mean (SD) total score58.5 (21.7)7 (2.8)
Life optimismMean (SD) LOT score13 (4.9)14 (5.6)
Physical activity≥1 walking, moderate or vigorous activity in last 7 days201 (83.4)8 (3.2)
Median (Q1; Q3) IPAQ score†720 (40.0; 1800.0)6 (3.0)
Healthcare utilisationsUsing any aids or specialist equipment67 (28.9)17 (6.8)
Median (Q1; Q3) GP visits in last 3 months2 (1.0; 3.0)79 (31.7)
Median (Q1; Q3) visits to other health/social care providers in last 3 months3 (1.0; 5.0)73 (29.3)
Social securityUnable to work due to illness or disability64 (25.8)1 (0.4)
Receiving disability living allowance (caring)44 (18.6)13 (5.2)
Receiving disability living allowance (mobility)47 (19.9)13 (5.2)
  • IPSS Scores: 0–7=‘mild symptoms’; 8–19=‘moderate symptoms’; 20–35=‘severe symptoms’.15 ICIQ-UI SF score: ≥6=‘moderate incontinence’.16 PHQ-9 scores: 0–4=‘minimal depression’; 5–9=‘mild depression’; 10–14=‘moderate depression’; 15–19=‘moderately severe depression’; 20–27=‘severe depression’.20 GAD-7 scores: 0–5=‘mild anxiety’; 6–10=‘moderate anxiety’; 11–15=‘moderately severe anxiety’; 15–21=‘severe anxiety’.19

  • *75/177 (42%) female participants reported not menstruating in the last 12 months

  • †Metabolic equivalent of task min/week.

  • AUDIT, Alcohol Use Disorders Identification Test; CVD, cardiovascular disease; DVT, deep vein thrombosis; EQ-5D-5L, EuroQoL 5-level EQ-5D version; GAD-7, 7-item Generalised Anxiety Disorder Assessment; GP, general practitioner; ICIQ-UI SF, International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form; IPAQ, International Physical Activity Questionnaire; IPSS, International Prostate Symptom Score; IWQOL-Lite, Impact of Weight on Quality of Life-Lite; LOT, Life Orientation Test; MCS, Mental Component Summary; MET, Metabolic equivalent of task; PCOS, polycystic ovary syndrome; PCS, Physical Component Summary; PHQ-9, Patient Health Questionnaire-9; SCOTS, SurgiCal Obesity Treatment Study; T2D, type 2 diabetes; VAS, visual analogue scale.