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Table 8 Quantile regression (median) of total cost incurred by socio-demographic factors

From: Costs incurred by outpatients at a university hospital in northwestern Ethiopia: a cross-sectional study

Variable Unadjusted coefficient 95% CI Adjusted coefficient 95% CI
Sexc
 Female −7.156 [−15.790, −2.050]* −2.961 [−9.460, 2.132]
Residenced
 Outside Gondar 20.935 [16.480, 27.023]* 10.948 [6.896, 25.362]*
Reason for visite
 Follow up visit 5.969 [−0.412, 11.926] 4.456 [−3.313, 8.999]
Age(years)f
 30–39 3.916 [−1.957, 11.494] 6.327 [−4.358, 12.242]
 40–49 9.412 [2.488, 19.437]* 7.319 [−2.937, 18.748]
 50–59 7.208 [−1.062, 18.262] 4.446 [−6.598 17.703]
 60+ 14.301 [6.103, 34.680]* 15.852 [−1.362, 34.684]
Marital statusg
 Unmarried −3.970 [−9.600, 2.988] 10.250 [0.923, 20.903]*
 Divorced/separated −8.154 [−14.596, − 1.281] −6.367 [− 12.448 14.329]
 Widow/er − 12.214 [−24.808, 9.439] −2.822 [− 12.767, 11.505]
Educational statush
 Able to read and write −5.770 [− 13.779, 4.816] − 6.641 [− 21.885, 11.028]
 Primary school (Grades 1–8) − 10.900 [− 20.019, − 6.340]* −7.930 [−15.613, 2.467]
 Secondary school (Grades 9–10) −10.165 [− 18.504, − 3.234]* −8.063 [− 15.390, 0.993]
 University education − 13.955 [− 27.328, − 3.363]* − 2.953 [− 20.775, 9.309]
Major occupationi
 Private company employee 8.579 [− 3.229, 55.444] 0.096 [− 20.537, 45.658]
 Self-employed/ business person −3.401 [−18.657, 7.019] − 12.006 [− 30.692, 1.768]
 Housewife − 1.147 [− 15.782, 3.234] −16.096 [− 32.824, −0.954]
 Farmer 9.238 [− 3.533, 18.309] −9.862 [− 31.740, 8.266]
 Student −9.230 [− 20.167, −0.698]* − 24.374 [−43.469, − 4.505]
 Other a −18.253 [− 29.113, − 5.950]* −17.159 [− 33.342, − 3.041]
Family size (number) 0.356 [− 0.556, 2.623] 0.033 [− 1.207, 1.399]
Number of working family members 3.936 [− 0.072, 9.983] 2.801 [− 0.912, 5.966]
Wealth index of familyj
 Lower 8.720 [−3.045,16.050] −2.475 [− 6.864, 5.230]
 Middle 13.936 [7.131,17.868]* −6.163 [− 14.672, 7.732]
 Higher 17.942 [12.424,24.872]* −1.585 [−16.565, 12.629]
 Highest 19.196 [11.616,28.365]* −0.314 [−10.427, 11.621]
Paymentk
 Free of fee −19.201 [−22.750, − 13.416]* − 14.907 [−20.892, −7.799]*
 Otherb −6.754 [− 13.321, − 6.517]* −11.181 [− 19.827, 14.231]
  1. Reference: cMale, dGondar, enew, f18–29, gmarried, hunable to read and write, igovernment employee, jlowest, kpatient/family
  2. *P-value < 0.05 a Daily labourer, driver b Paid by employers, paid partly by employers