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. 2021 Aug 24;27(4):1457–1466. doi: 10.1007/s40519-021-01285-3

Table 3.

Operation status according to socio-demographic and follow-up variables

Operated on N = 122 Proportion Non-operated on N = 99 Proportion Chi2/Fisher’s exact test *
N % N % P value
Age (years)
 17–24 4/122 3.3 12/99 12.1 0.152
 25–34 27/122 22.1 21/99 21.2
 35–44 34/122 27.9 23/99 23.2
 45–54 40/122 32.8 28/99 28.3
 55 +  17/122 13.9 15/99 15.2
Gender
 Female 105/122 86.1 74/98 74.7 0.039
 Male 17/122 13.9 25/98 25.3
Marital status
 Single 32/122 26.2 30/98 30.3 0.701
 Married 61/122 50.0 43/98 43.4
 Divorced/separated 25/122 20.5 24/98 24.2
 Widowed 4/122 3.3 2/98 2.0
Parenthood
 Yes 92/117 78.6 57/73 78.1 0.999
 No 25/117 21.4 16/73 21.9
Country of birth
 Switzerland 63/113 55.8 29/56 51.8 0.651
 Portugal 25/113 22.1 11/56 19.6
 Other (21 countries) 25/113 22.1 16/56 28.6
Education
 Mandatory school 36/110 32.7 9/33 27.3 0.595
 Upper secondary level 64/110 58.2 19/33 57.6
 Tertiary level 10/110 9.1 5/33 15.2
Employment status
 Employed 68/122 55.7 49/99 49.5 0.174
 Stay at home 20/122 16.4 11/99 11.1
 Disability insurance 10/122 8.2 14/99 14.1
 Social aid 7/122 5.7 12/99 12.1
 Employment insurance 11/122 9.0 5/99 5.1
 At school 2/122 1.6 5/99 5.1
 Retired 4/122 3.3 3/99 3.0
BMI (kg/m2)
 30–34 2/122 1.6 5/98 5.1
 35–39 38/122 31.1 37/98 37.8
 40–44 50/122 41.0 32/98 32.7 0.152
 45–49 24/122 19.7 16/98 16.3
 50 + 8/122 6.6 8/98 8.2
Cluster
 Cluster 1 21/122 17.2 21/99 21.2 0.189
 Cluster 2 13/122 10.7 16/99 16.2
 Cluster 3 51/122 41.8 28/99 28.3
 Cluster 4 37/122 30.3 34/99 34.3
Psychological evaluation
 Favorable 20/110 18.2 0/29 0.0 0.000
 Close postop follow-up 35/110 31.8 2/29 6.9
 Close preop follow-up 51/110 46.4 8/29 27.6
 Unfavorable 4/110 3.6 19/29 65.5
Dietary evaluation
 Favorable 16/75 21.3 1/24 4.2 0.000
 Close postop follow-up 26/75 34.7 5/24 20.8
 Close preop follow-up 32/75 42.7 9/24 37.5
 Unfavorable 1/75 1.3 9/24 37.5

*Regular chi-square tests are performed by default. Should there be less than five observations in a category, a Fisher’s exact chi-squared test is computed instead