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. 2015 Feb 15;15:34. doi: 10.1186/s12884-015-0459-6

Table 5.

Factors associated with abortion complication severity; results from ordered logistic (I) and partial proportional odds regression models (II & III)

Variables Unadjusted models Adjusted models
OR (95% CI): (I) OR (95% CI): low vs. moderate/severe (II) OR (95% CI): low/moderate vs. severe (III)
Age category (ref = 10-19 yrs) Low
  20-24 yrs 0.64** (0.46-0.88) 0.89 (0.62-1.27) §
  25 + yrs 0.66* (0.48-0.92) 0.95 (0.63-1.44) §
Residence (ref = Urban)
  Rural 1.05 (0.73-1.52) 0.82 (0.56-1.20) §
Marital status (ref = Never married)
  Married 0.65** (0.50-0.86) 1.20 (0.82-1.76) §
  Divorced 1.62 (0.90-2.94) 1.32 (0.69-2.53) §
Education (ref = No education)
  Primary 1.23 (0.77-1.95) 0.99 (0.56-1.74) §
  Secondary 1.03 (0.63-1.70) 0.74 (0.41-1.34) §
  Post-secondary 0.70 (0.42-1.15) 0.61 (0.30-1.23) §
Occupation (ref = Farmer/unskilled)
  Skilled/cleric 0.53** (0.35-0.82) 0.81 (0.53-1.24) §
  Student 1.09 (0.73-1.64) 0.95 (0.60-1.49) §
  Unemployed 0.66* (0.45-0.96) 0.87 (0.62-1.23) §
Religion (ref = Christians)
  Muslims 0.87 (0.0.57-1.32) 1.15 (0.69-1.91) §
  Others 1.27 (0.64-2.51) 1.09 (0.46-2.58) §
Parity (ref = 1-2)
  3-4 1.03 (0.79-1.34) 0.84 (0.60-1.19) 1.18 (0.85-1.65)
  5+ 1.23 (0.91-1.67) 0.97 (0.63-1.49) §
Previous abortion (ref = Nil)
  1+ previous abortions 1.02 (0.68-1.54) 0.88 (0.63-1.23) §
Pregnancy timing (ref = Wanted then)
  Wanted later 1.87*** (1.37-2.56) 1.43* (1.01-2.03) §
  Did not want 2.66*** (1.94-3.65) 1.33 (0.87-2.04) 2.03*** (1.36-3.01)
  Don’t know 1.55 (0.81-2.97) 1.35 (0.71-2.56) §
Interference/induced (ref = No)
  Yes 3.32*** (2.45-4.49) 1.44 (0.88-2.37) 2.39*** (1.72-3.34)
Gestational age (ref = equal or less weeks)
  >12 Weeks 1.58*** (1.23-2.01) 1.65*** (1.24-2.21) §
Delay (ref = <=6 hours)
  7-48 hours 1.81*** (1.28-2.55) 2.12*** (1.42-3.17) 1.34 (0.89-2.03)
  3-7 days 2.52*** (1.69-3.78) 2.01*** (1.34-2.99) §
  More than 7 days 3.69*** (2.27-6.00) 2.35*** (1.45-3.79) §
Referred (ref = Not referred)
  Referred 1.56** (1.12-2.17) 1.10 (0.81-1.48) 1.52* (1.10-2.10)
Level of health facility (ref = Level II)
  Level III 0.67 (0.40-1.11) 0.52* (0.30-0.88) 1.11 (0.70-1.78)
  Level IV 0.56** (0.37-0.82) 0.70 (0.45-1.09) §
  Level V 0.36*** (0.24-0.54) 0.46** (0.29-0.73) §
  Level VI 0.79 (0.54-1.15) 2.54*** (1.53-4.21) 0.81 (0.31-2.07)
Region (ref = Central and Nairobi)
  Coast & North Eastern 0.77 (0.46-1.31) 0.78 (0.50-1.21) §
  Eastern 0.60 (0.30-1.20) 0.59 (0.31-1.13) §
  Nyanza & Western 1.21 (0.68-2.15) 0.95 (0.58-1.58) §
  Rift valley 1.06 (0.60-1.88) 1.17 (0.74-1.86) §

*p < 0.05, **p < 0.01, ***p < 0.001; §Parallel slope assumption not violated on these variables, estimates same as those in (II). OR = odds ratio, CI = confidence interval.