Table 2

Fully adjusted ORs for the predictors of missed hospital appointment for all clinics combined (except Obstetrics and Gynaecology and Paediatric clinics)

ModelModel (1) N=4 72 882*Model (2) N=4 72 882
PredictorsFully adjusted OR (95% CI)Fully adjusted OR (95% CI)
Sex
 FemaleReferenceReference
 Male1.08 (1.06 to 1.10)1.08 (1.06 to 1.09)
Age category
 19–30 years old1.15 (1.13 to 1.18)1.14 (1.12 to 1.17)
 31–40 years oldReferenceReference
 41–50 years old0.91 (0.90 to 0.94)0.92 (0.90 to 0.94)
 51–60 years old0.89 (0.87 to 0.91)0.90 (0.88 to 0.92)
 61–70 years old0.97 (0.95 to 1.00)0.98 (0.96 to 1.00)
 71–80 years old1.17 (1.13 to 1.20)1.17 (1.14 to 1.21)
 81–90 years old1.34 (1.28 to 1.42)1.35 (1.28 to 1.42)
 >90 years old1.62 (1.39 to 1.89)1.60 (1.38 to 1.87)
Appointment day
 SundayReferenceReference
 Monday0.93 (0.91 to 0.95)0.94 (0.91 to 0.96)
 Tuesday0.88 (0.86 to 0.90)0.88 (0.86 to 0.90)
 Wednesday0.95 (0.93 to 0.97)0.95 (0.93 to 0.97)
 Thursday0.84 (0.83 to 0.86)0.85 (0.84 to 0.87)
Appointment month
 JanuaryReferenceReference
 February0.95 (0.91 to 0.98)0.95 (0.91 to 0.98)
 March0.95 (0.92 to 0.99)0.95 (0.92 to 0.98)
 April1.04 (1.00 to 1.07)1.03 (1.00 to 1.07)
 May1.12 (1.08 to 1.15)1.12 (1.08 to 1.15)
 June1.24 (1.20 to 1.29)1.24 (1.20 to 1.29)
 July1.10 (1.06 to 1.14)1.11 (1.07 to 1.14)
 August1.08 (1.05 to 1.12)1.09 (1.05 to 1.13)
 September1.00 (0.97 to 1.04)1.01 (0.97 to 1.04)
 October1.01 (0.98 to 1.04)1.02 (0.98 to 1.05)
 November1.10 (1.06 to 1.13)1.10 (1.07 to 1.14)
 December1.04 (1.01 to 1.08)1.05 (1.02 to 1.09)
Service cost
 Pay visit and registration fees onlyReferenceReference
 Pay all medical service fees1.36 (1.28 to 1.44)1.36 (1.28 to 1.44)
 ‡Under Social Affair coverage0.62 (0.59 to 0.66)0.64 (0.60 to 0.68)
Appointment waiting days
 ≤30 daysReferenceReference
 31–60 days1.45 (1.42 to 1.48)1.43 (1.40 to 1.47)
 61–90 days1.40 (1.37 to 1.43)1.40 (1.37 to 1.43)
 91–120 days1.56 (1.52 to 1.60)1.55 (1.51 to 1.59)
 >120 days1.87 (1.84 to 1.91)1.85 (1.81 to 1.89)
Appointment year
 2014ReferenceReference
 20151.06 (1.04 to 1.09)1.08 (1.06 to 1.11)
 20160.99 (0.97 to 1.01)1.03 (1.00 to 1.05)
 20171.02 (1.00 to 1.05)1.09 (1.07 to 1.12)
 20180.95 (0.93 to 0.97)1.03 (1.00 to 1.05)
Marital status
 Single0.91 (0.89 to 0.93)0.91 (0.89 to 0.93)
 MarriedReferenceReference
 Divorced1.15 (1.06 to 1.25)1.16 (1.06 to 1.26)
 Widow1.10 (1.03 to 1.18)1.10 (1.03 to 1.17)
 Missing1.15 (1.13 to 1.17)1.13 (1.11 to 1.15)
Nationality
 OmaniReferenceReference
 Non-Omani1.02 (0.97 to 1.07)1.01 (0.96 to 1.06)
  • *Stratified by appointment group.

  • †A fully adjusted OR measures how the change in one predictor affects the odds of a response variable when all other predictors in the model are controlled.

  • ‡Exempted from all medical service fees.