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Table 2 Factors associated with severe pre-eclampsia (N = 400)

From: Prevalence and risk factors associated with severe pre-eclampsia among postpartum women in Zanzibar: a cross-sectional study

Variables Severe pre-eclampsia X2 P-value
Yes No
n (%) n (%)
Age (years)
 15–20 5 (13.5) 32 (86.5)   
 21–35 74 (24.9) 223 (75.1) 9.26 0.01
 36 and above 26 (39.4) 40 (60.6)   
Occupation
 House wives 89 (26.8) 283 (73.2)   
 Self employed 13 (22.8) 44 (77.2) 0.41 0.82
 Employed 3 (27.3) 8 (72.7)   
Marital status
 Single 2 (16.7) 10 (83.3)   
 Married 103 (26.5) 285 (73.5) 0.59 0.44
Level of education
 No formal education 4 (13.3) 26 (86.7)   
 Primary 49 (30.2) 113 (69.8) 4.31 0.23
 Secondary 51 (25.2) 151 (74.8)   
 Higher education 1 (16.7) 5 (83.3)   
Residence
 Urban 39 (20.9) 148 (79.1)   
 Rural 66 (31) 147 (69) 5.28 0.02
Parity
 Primigravida 39 (26) 111 (74.4)   
 Multipara 35 (25.2) 104 (74.8) 0.25 0.88
 Grand multipara 31 (27.9) 80 (72.1)   
Pregnancy with a new partner
 Yes 51 (44.3) 64 (55.7)   
 No 54 (18.9) 231 (81.1) 27.31 < 0.00
Pre-eclampsia in previous pregnancy
 Yes 7 (100) 0 (0)   
 No 98 (24.9) 295 (75.1) 20.02 < 0.00
Diabetes prior to conception
 Yes 5 (83.3) 1 (16.7) 10.25 0.00
 No 100 (25.4) 294 (74.6)   
High BP in previous pregnancy
 Yes 14 (82.4) 3 (17.6)   
 No 91 (23.8) 292 (76.2) 28.87 < 0.00
Having multifetal gestation
 Yes 9 (56.3) 7 (43.7)   
 No 96 (25) 288 (75) 7.75 0.00
High BP prior conception
 Yes 7 (87.5) 1 (12.5)   
 No 98 (25) 294 (75) 15.82 < 0.00
Family history of high blood pressure
 Yes 43 (58.9) 30 (41.1)   
 No 62 (19) 265 (81) 49.18 < 0.00
Household smoking
 Yes 16 (72.7) 6 (27.3)   
 No 89 (23.5) 289 (76.5) 25.98 < 0.00
Paternal age
  < 45 yrs 79 (23.5) 257 (76.5)   
  ≥ 45 yrs 26 (40.6) 38 (59.4) 8.13 0.00
Number of abortions
 0–2 101 (29.5) 289 (74.1)   
 3–10 4 (40) 6 (60) 1.00 0.32
Age of last born
 0–9 10 2 (25.7) 295 (74.3)   
 10–15 3 (100) 0 (0) 8.49 0.00
ANC Visit
  < 4 57 (25.2) 169 (74.8)   
  ≥ 4 48 (27.6) 126 (72.4) 0.285 0.59