Respondents’ characteristics
Overall, the study included 34,144 children born within the three years preceding each survey (Suppl. Figure 1). A majority of the children were born to middle-aged women (20–34 years), women who resided in rural areas, had a primary level of education, had two to four children, and had attended less than four ANC visits across the years. An almost equal proportion of participants lived in the West, East, and South provinces of Rwanda with the smallest proportion of participants living in Kigali City (Table 1).
Table 1
Participants’ characteristics
Characteristics
|
2000 (N=6706)
|
2005 (N=7712)
|
2010 (N=7159)
|
2014-15 (N=6248)
|
2019–20 (N=6319)
|
n
|
%
|
n
|
%
|
n
|
%
|
n
|
%
|
n
|
%
|
Age, years
|
|
|
|
|
|
|
|
|
|
|
15–19
|
431
|
6.4
|
318
|
4.1
|
342
|
4.8
|
344
|
5.5
|
286
|
4.5
|
20–34
|
4,881
|
72.8
|
5,830
|
75.6
|
5,605
|
78.3
|
4,875
|
78.0
|
4,520
|
71.5
|
35–49
|
1,394
|
20.8
|
1,564
|
20.3
|
1,212
|
16.9
|
1,029
|
16.5
|
1,513
|
23.9
|
Residence
|
|
|
|
|
|
|
|
|
|
|
Urban
|
1,460
|
21.8
|
1,478
|
19.2
|
906
|
12.7
|
1,384
|
22.2
|
1,284
|
20.3
|
Rural
|
5,246
|
78.2
|
6,234
|
80.8
|
6,253
|
87.3
|
4,864
|
77.9
|
5,035
|
79.7
|
Marital status
|
|
|
|
|
|
|
|
|
|
|
Not in a union
|
841
|
12.5
|
904
|
11.7
|
988
|
13.8
|
1032
|
16.5
|
1,004
|
15.9
|
Married/cohabiting
|
5,865
|
87.5
|
6,808
|
88.3
|
6,171
|
86.2
|
5,216
|
83.5
|
5,315
|
84.1
|
Education
|
|
|
|
|
|
|
|
|
|
|
No formal
|
2,115
|
31.5
|
2,082
|
27.0
|
1,327
|
18.5
|
893
|
14.3
|
691
|
10.9
|
Primary
|
3,802
|
56.7
|
4,941
|
64.1
|
5,222
|
72.9
|
4,479
|
71.7
|
4,076
|
64.5
|
Secondary and higher
|
789
|
11.8
|
689
|
8.9
|
610
|
8.5
|
876
|
14.0
|
1,552
|
24.6
|
Occupation
|
|
|
|
|
|
|
|
|
|
|
Not working
|
149
|
2.6
|
1,552
|
20.1
|
831
|
11.6
|
534
|
8.6
|
1,269
|
20.1
|
Agriculture
|
4,915
|
86.4
|
5,475
|
71.0
|
5,473
|
76.5
|
4,572
|
73.2
|
2,510
|
39.7
|
Formal employment
|
624
|
11.0
|
685
|
8.9
|
855
|
11.9
|
1,140
|
18.3
|
2,540
|
40.2
|
Wealth, quintiles
|
|
|
|
|
|
|
|
|
|
|
Poorest
|
1,191
|
18.0
|
1,604
|
20.8
|
1,703
|
23.8
|
1,542
|
24.7
|
1,604
|
25.4
|
Poorer
|
1,587
|
24.0
|
1,518
|
19.7
|
1,567
|
21.9
|
1,294
|
20.7
|
1,241
|
19.6
|
Average
|
824
|
12.5
|
1,517
|
19.7
|
1,419
|
19.8
|
1,152
|
18.4
|
1,178
|
18.6
|
Richer
|
1,300
|
19.7
|
1,591
|
20.6
|
1,289
|
18.0
|
1,067
|
17.1
|
1,142
|
18.1
|
Richest
|
1,707
|
25.8
|
1,482
|
19.2
|
1,181
|
16.5
|
1,193
|
19.1
|
1,154
|
18.3
|
ANC attendance, visits
|
|
|
|
|
|
|
|
|
|
|
< 4
|
3,452
|
51.5
|
50.85
|
50.0
|
2,929
|
40.9
|
39.36
|
38.1
|
2,367
|
37.5
|
≥4
|
442
|
6.6
|
7.659
|
7.0
|
1,668
|
23.3
|
31.33
|
29.9
|
2,102
|
33.3
|
Missing
|
2,812
|
41.9
|
41.5
|
40.8
|
2,562
|
35.8
|
29.31
|
28.4
|
1,850
|
29.3
|
Parity
|
|
|
|
|
|
|
|
|
|
|
1
|
694
|
10.4
|
786
|
10.2
|
1,173
|
16.4
|
1,222
|
19.6
|
1,141
|
18.1
|
2–4
|
3,505
|
52.3
|
3,925
|
50.9
|
3,776
|
52.7
|
3,617
|
57.9
|
3,612
|
57.2
|
5+
|
2,507
|
37.4
|
3,001
|
38.9
|
2,210
|
30.9
|
1,409
|
22.6
|
1,566
|
24.8
|
Baby’s sex
|
|
|
|
|
|
|
|
|
|
|
Male
|
3,415
|
50.9
|
3,923
|
50.9
|
3,601
|
50.3
|
3,149
|
50.4
|
3,205
|
50.7
|
Female
|
3,291
|
49.1
|
3,789
|
49.1
|
3,558
|
49.7
|
3,099
|
49.6
|
3,114
|
49.3
|
Baby’s birth weight
|
|
|
|
|
|
|
|
|
|
|
Average
|
1,591
|
23.8
|
1,855
|
24.1
|
3,844
|
53.7
|
4581
|
73.4
|
4,839
|
76.6
|
Low birth weight
|
218
|
3.3
|
207
|
2.7
|
501
|
7.0
|
600
|
9.6
|
692
|
11.0
|
Big baby
|
4,872
|
72.9
|
5,650
|
73.3
|
2,814
|
39.3
|
1,061
|
17.0
|
788
|
12.5
|
Twin Status
|
|
|
|
|
|
|
|
|
|
|
Singleton
|
6,542
|
97.6
|
7,518
|
97.5
|
6959
|
97.2
|
6069
|
97.1
|
6,151
|
97.3
|
Multiple
|
164
|
2.5
|
194
|
2.5
|
200
|
2.8
|
179
|
2.9
|
168
|
2.7
|
Access to information
|
|
|
|
|
|
|
|
|
|
|
No
|
2,375
|
35.4
|
1,661
|
21.5
|
673
|
9.4
|
1,028
|
16.5
|
1,359
|
21.5
|
Yes
|
4,331
|
64.6
|
6,051
|
78.5
|
6,486
|
90.6
|
5,220
|
83.6
|
4,960
|
78.5
|
Partner’s education
|
|
|
|
|
|
|
|
|
|
|
No formal
|
1,916
|
29.8
|
1,986
|
27.1
|
1,318
|
19.7
|
906
|
15.9
|
673
|
12.7
|
Primary
|
3,551
|
55.2
|
4,409
|
60.1
|
4,649
|
69.6
|
4,049
|
71.2
|
3,521
|
66.5
|
Secondary and higher
|
961
|
15.0
|
945
|
12.9
|
715
|
10.7
|
730
|
12.8
|
1,103
|
20.8
|
Region
|
|
|
|
|
|
|
|
|
|
|
Kigali City
|
837
|
12.5
|
504
|
6.5
|
750
|
10.5
|
729
|
11.7
|
731
|
11.6
|
West
|
1,605
|
23.9
|
1,906
|
24.7
|
1,805
|
25.2
|
1,624
|
26.0
|
1,681
|
26.6
|
East
|
1,533
|
22.9
|
1,973
|
25.6
|
1,790
|
25.0
|
1,545
|
24.7
|
1,512
|
23.9
|
South
|
1,490
|
22.2
|
2,014
|
26.1
|
1,771
|
24.7
|
1,503
|
24.1
|
1,432
|
22.7
|
North
|
1,241
|
18.5
|
1,315
|
17.1
|
1,043
|
14.6
|
847
|
13.6
|
963
|
23.9
|
Place of delivery
|
|
|
|
|
|
|
|
|
|
|
Home/others
|
4,723
|
70.5
|
5,429
|
70.5
|
2,005
|
28.0
|
525
|
8.4
|
435
|
6.9
|
Public health facility
|
1,856
|
27.7
|
2,169
|
28.2
|
5,101
|
71.3
|
5,702
|
91.3
|
5,775
|
91.4
|
Private health facility
|
121
|
1.8
|
98
|
1.3
|
50
|
0.7
|
18
|
0.3
|
109
|
1.7
|
Trends in prevalence of CS in Rwanda
Overall, the rate of CS increased significantly from 2.2% (95% CI 1.8–2.6) in 2000 to 15.6% (95% CI 13.9–16.5) in 2019-20. The rate was consistently high among women 15-19 years of age, women residing in urban areas, those with secondary or higher levels of education, from the richest households, with access to information, on paid employment, and those who had one child, male babies, and multiple pregnancies across the years (Table 2).
We found regional disparities in the prevalence of CS across the years. Kigali city had a significantly higher prevalence than the other regions; with a three-fold increase in CS from 8.8% in 2000 to 26.4% in 2019-20. The Northern region had the lowest prevalence of CS despite a 10-fold increase between 2000 (1.3%) and 2019-20 (13.2%) (Table 2).
There was an upward trend in the prevalence of CS in both public and private health facilities. The prevalence of CS in public facilities increased by about seven percentage points from 8.2% (95% CI 6.8–10.0) in 2000 to 15.4% (95% CI 14.1–16.8) in 2019-20. On the other hand, there was about a four-fold increase in the prevalence of CS in private facilities from 13.6% (95% CI 7.4–23.8%) in 2000 to 60.6% (95% CI 47.2–72.5) in 2019-20; though the 2019-20 rate was a 20% decrease from the 2014-15 rate (Table 2). The prevalence of CS between public and private health facilities in 2010, 2014-15 and 2019-20 differed significantly despite having almost similar rates in 2005 (Table 2).
Table 2
Prevalence of caesarean section according to participants’ characteristics
Characteristics
|
2000
|
2005
|
2010
|
2014-15
|
2019–20
|
%
|
95% CI
|
%
|
95% CI
|
%
|
95% CI
|
%
|
95% CI
|
%
|
95% CI
|
Age, years
|
|
|
|
|
|
|
|
|
|
|
15–19
|
3.7
|
(2.0–6.9)
|
4.1
|
(2.3–7.2)
|
9.9
|
(7.0–13.8)
|
14.1
|
(10.3–18.9)
|
14.2
|
(10.1–19.6)
|
20–34
|
2.2
|
(1.8–2.8)
|
3.1
|
(2.5–3.7)
|
7.4
|
(6.5–8.3)
|
13.3
|
(12.1–14.7)
|
15.8
|
(14.3–17.4)
|
35–49
|
1.5
|
(0.9–2.5)
|
1.8
|
(1.2–2.6)
|
5.2
|
(3.9–6.9)
|
9.7
|
(7.8–12.0)
|
13.5
|
(11.2–16.1)
|
Residence
|
|
|
|
|
|
|
|
|
|
|
Urban
|
6.4
|
(5.0–8.1)
|
7.4
|
(5.5–9.97)
|
16.0
|
(13.0–19.6)
|
22.1
|
(18.9–25.8)
|
14.7
|
(12.4–17.4)
|
Rural
|
1.4
|
(1.1–1.9)
|
2.1
|
(1.7–2.6)
|
6.0
|
(5.3–6.8)
|
10.8
|
(9.7–12.1)
|
15.3
|
(13.9–16.7)
|
Marital status
|
|
|
|
|
|
|
|
|
|
|
Not in a union
|
1.6
|
(1.0–2.7)
|
3.9
|
(2.6–5.7)
|
7.8
|
(6.2–9.7)
|
13.1
|
(10.9–15.7)
|
26.4
|
(22.9–30.3)
|
Married/cohabiting
|
2.2
|
(1.8–2.7)
|
2.7
|
(2.2–3.3)
|
7.0
|
(6.2–7.9)
|
12.7
|
(11.5–14.1)
|
12.9
|
(11.6–14.3)
|
Education
|
|
|
|
|
|
|
|
|
|
|
No formal
|
1.1
|
(0.7–1.7)
|
2.2
|
(1.5–3.1)
|
5.1
|
(3.9–6.8)
|
7.7
|
(5.7–10.3)
|
8.9
|
(6.7–11.9)
|
Primary
|
2.3
|
(1.8–3.0)
|
2.4
|
(1.9–3.1)
|
6.4
|
(5.6–7.2)
|
12.1
|
(10.8–13.5)
|
12.7
|
(11.4–14.2)
|
Secondary
|
5.1
|
(3.7–7.0)
|
8.4
|
(6.1–11.5)
|
18.6
|
(15.0–22.8)
|
22.4
|
(19.1–26.1)
|
24.3
|
(21.1–27.9)
|
Occupation
|
|
|
|
|
|
|
|
|
|
|
Not working
|
7.7
|
(3.2–17.1)
|
4.6
|
(3.4–6.2)
|
9.4
|
(7.4–11.9)
|
13.9
|
(11.2–17.2)
|
19.0
|
(16.4–22.0)
|
Agriculture
|
1.4
|
(1.0–1.8)
|
1.9
|
(1.5–2.4)
|
5.7
|
(5.0–6.6)
|
10.0
|
(8.9–11.2)
|
12.2
|
(10.5–14.0)
|
Formal employment
|
6.1
|
(4.1–8.9)
|
7.2
|
(5.1–10.1)
|
14.2
|
(11.4–17.6)
|
24.5
|
(20.9–28.5)
|
16.2
|
(14.3–18.3)
|
Wealth, quintiles
|
|
|
|
|
|
|
|
|
|
|
Poorest
|
1.6
|
(0.9–2.8)
|
1.0
|
(13.7–18.0)
|
5.5
|
(4.5–6.8)
|
9.7
|
(7.9–11.8)
|
10.4
|
(8.6–12.6)
|
Poorer
|
1.0
|
(0.6–1.8)
|
2.1
|
(1.3–3.3)
|
5.6
|
(4.3–7.2)
|
9.2
|
(7.4–11.4)
|
9.84
|
(8.1–11.9)
|
Average
|
1.6
|
(1.0–2.7)
|
1.8
|
(1.1–2.8)
|
6.5
|
(5.0–8.3)
|
9.9
|
(7.8–12.5)
|
12.5
|
(10.3–15.1)
|
Richer
|
2.2
|
(1.4–3.4)
|
2.5
|
(1.8–3.6)
|
5.8
|
(4.4–7.5)
|
14.4
|
(11.8–17.3)
|
16.8
|
(14.0–20.0)
|
Richest
|
4.3
|
(3.2–5.7)
|
7.8
|
(6.0–10.1)
|
14.2
|
(11.9–16.8)
|
23.2
|
(20.4–26.2)
|
28.3
|
(24.5–32.5)
|
ANC attendance, visits
|
|
|
|
|
|
|
|
|
|
|
1–3
|
1.9
|
(1.5–2.4)
|
2.5
|
(2.0–3.0)
|
7.2
|
(6.3–8.2)
|
11.0
|
(9.8–12.3)
|
13.6
|
(12.1–15.3)
|
≥4
|
4.9
|
(3.3–7.4)
|
6.8
|
(5.2–9.0)
|
10.4
|
(8.9–12.1)
|
15.5
|
(13.8–17.4)
|
19.6
|
(17.8–21.5)
|
Missing
|
2.1
|
(1.6–2.8)
|
2.6
|
(2.0–3.4)
|
4.9
|
(4.0–6.0)
|
12.2
|
(10.5–14.2)
|
12.2
|
(10.5–14.1)
|
Parity
|
|
|
|
|
|
|
|
|
|
|
1
|
4.2
|
(3.0–6.1)
|
6.0
|
(4.6–7.9)
|
15.1
|
(13.1–17.4)
|
17.9
|
(15.7–20.4)
|
20.7
|
(18.4–23.1)
|
2–4
|
2.6
|
(2.0–3.3)
|
3.2
|
(2.5–4.1)
|
7.2
|
(6.1–8.5)
|
13.8
|
(12.2–15.5)
|
16.6
|
(14.9–18.5)
|
≥5
|
1.1
|
(0.7–1.6)
|
1.6
|
(1.2–2.3)
|
2.8
|
(2.2–3.7)
|
6.0
|
(4.6–7.7)
|
7.9
|
(6.4–9.9)
|
Baby’s sex
|
|
|
|
|
|
|
|
|
|
|
Male
|
2.4
|
(1.9–3.0)
|
3.2
|
(2.6–3.9)
|
7.9
|
(7.0–9.0)
|
14.2
|
(12.7–15.7)
|
16.2
|
(14.7–17.8)
|
Female
|
1.9
|
(1.4–2.6)
|
2.5
|
(2.0–3.2)
|
6.3
|
(5.5–7.2)
|
11.4
|
(10.0–12.9)
|
14.1
|
(12.4–16.0)
|
Baby’s birth weight
|
|
|
|
|
|
|
|
|
|
|
Average
|
6.7
|
(5.3–8.4)
|
7.7
|
(6.3–9.4)
|
9.0
|
(7.9–10.2)
|
12.5
|
(11.3–13.8)
|
15.4
|
(14.0–16.9)
|
Low birth weight
|
8.8
|
(5.0–15.0)
|
9.5
|
(5.9–15.0)
|
10.0
|
(7.7–12.8)
|
15.2
|
(12.0–19.0)
|
14.7
|
(12.0–17.8)
|
Big baby
|
0.7
|
(0.5–1.0)
|
1.1
|
(0.8–1.5)
|
4.1
|
(3.3–5.1)
|
12.5
|
(10.3–15.3)
|
14.3
|
(11.4–17.7)
|
Twin status
|
|
|
|
|
|
|
|
|
|
|
Singleton
|
2.0
|
(1.6–2.4)
|
2.8
|
(2.4–3.4)
|
6.8
|
(6.1–7.5)
|
12.0
|
(11.0–13.2)
|
14.8
|
(13.6–16.2)
|
Multiple
|
8.6
|
(3.8–18.4)
|
4.4
|
(1.9–10.1)
|
19.1
|
(12.3–28.4)
|
37.2
|
(27.3–48.4)
|
27.2
|
(18.4–38.3)
|
Access to information
|
|
|
|
|
|
|
|
|
|
|
No
|
0.9
|
(0.6–1.4)
|
1.6
|
(1.0–2.6)
|
6.4
|
(4.6–8.9)
|
9.9
|
(7.8–12.5)
|
11.7
|
(9.6–14.1)
|
Yes
|
2.9
|
(2.3–3.6)
|
3.2
|
(2.7–3.9)
|
7.2
|
(6.4–8.0)
|
13.4
|
(12.1–14.7)
|
16.1
|
(14.6–17.7)
|
Partner’s education
|
|
|
|
|
|
|
|
|
|
|
No formal
|
1.5
|
(1.0–2.3)
|
1.3
|
(0.8–1.9)
|
5.7
|
(4.3–7.4)
|
9.0
|
(6.8–11.9)
|
8.9
|
(6.5–12.1)
|
Primary
|
1.9
|
(1.5–2.6)
|
2.9
|
(2.2–3.8)
|
6.0
|
(5.2–7.0)
|
11.8
|
(10.5–13.1)
|
13.5
|
(12.0–15.1)
|
Secondary and higher
|
4.4
|
(2.7–6.9)
|
5.4
|
(4.0–7.1)
|
14.3
|
(11.3–18.0)
|
23.6
|
(20.1–27.7)
|
25.3
|
(21.6–29.3)
|
Region
|
|
|
|
|
|
|
|
|
|
|
Kigali City
|
8.8
|
(6.8–11.5)
|
12.1
|
(8.2–17.5)
|
15.2
|
(11.9–19.1)
|
21.8
|
(18.0–26.0)
|
26.4
|
(22.3–31.0)
|
South
|
2.0
|
(1.3–3.1)
|
2.8
|
(2.1–3.8)
|
7.5
|
(6.0–9.3)
|
14.5
|
(12.1–17.2)
|
16.2
|
(13.8–19.0)
|
West
|
1.9
|
(1.3–2.8)
|
2.8
|
(2.0–3.9)
|
6.1
|
(5.0–7.5)
|
11.4
|
(9.2–14.1)
|
12.5
|
(10.4–14.9)
|
East
|
2.3
|
(1.4–3.5)
|
1.9
|
(1.2–2.9)
|
6.5
|
(5.2–8.0)
|
10.8
|
(9.0–13.0)
|
11.2
|
(8.67–14.4)
|
North
|
1.3
|
(0.8–2.3)
|
1.2
|
(0.7–2.1)
|
4.5
|
(3.1–6.5)
|
8.5
|
(6.4–11.1)
|
13.2
|
(10.7–16.3)
|
Type of facility
|
|
|
|
|
|
|
|
|
|
|
Public
|
8.2
|
(6.8–10.0)
|
10.2
|
(8.6–11.9)
|
9.6
|
(8.7–10.7)
|
13.9
|
(12.6–15.2)
|
15.4
|
(14.1–16.8)
|
Private
|
13.6
|
(7.4–23.8)
|
10.9
|
(5.7–20.0)
|
41.5
|
(26.6–58.1)
|
76.5
|
(36.9–94.8)
|
60.6
|
(47.2–72.5)
|
ANC: Antenatal care |
Factors associated with CS in Rwanda
Based on the unadjusted logistic regression models, there was an association between CS and residential area, education, employment, wealth, women’s age, access to media, parity, ANC attendance, multiple births, baby’s sex and birth weight (Suppl. Table 2).
Table 3 presents the results of the population-based multivariable logistic regression models for each of the four surveys and the pooled model. Results from the pooled model indicate an association between CS and maternal age, occupation, wealth, ANC attendance, parity, sex and size of the child, and region of residence. The odds of CS were higher among women aged 35 years or older (aOR: 1.77, 95% CI 1.26–2.49) and those who had attended four or more ANC visits (aOR: 1.64, 95% CI 1.46–1.84) compared to women 15-19 years of age and those who had visited ANC less than four times, respectively. Moreover, women in formal employment (aOR: 1.21, 95% CI 1.00–1.46), those with primary (aOR: 1.24, 95% CI 1.03–1.51) and secondary or higher levels of education (aOR: 1.58, 95% CI 1.24–2.04) and from the richest households (aOR: 1.52, 95% CI 1.23–1.87) had higher odds of CS compared to unemployed, uneducated, and poorest women, respectively. On the other hand, multiparous women and those residing outside Kigali City had 34–75% and 30–53% lower odds of CS, respectively. Besides, women who delivered big babies had lower odds of CS (aOR: 0.42, 95% CI 0.36–0.48) compared to those with normal-weight babies (Table 3).
Across the surveys, women with multiple pregnancies, with ≥4 ANC visits and from the richest households had higher odds of CS while multiparous women and women with female babies had lower odds of CS. In 2000, women working in the agricultural sector had lower odds of CS while in 2014, women in formal employment had higher odds of CS. Region of residence and partner education, and marital status were associated with CS in 2005 and 2010, respectively (Table 3).
Table 3
Factors associated with caesarean section at a population level in Rwanda
Characteristics
|
2000
|
2005
|
2010
|
2014
|
2019–20
|
Pooled
|
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
Age, years
|
|
|
|
|
|
|
15–19
|
1
|
1
|
1
|
1
|
1
|
1
|
20–34
|
0.76 (0.32–1.78)
|
1.05 (0.42–2.60)
|
1.18 (0.67–2.05)
|
1.12 (0.72–1.72)
|
1.17 (0.60–2.25)
|
1.12 (0.83–1.50)
|
35–49
|
1.13 (0.31–4.07)
|
0.92 (0.33–2.51)
|
1.86 (0.91–3.79)
|
1.45 (0.86–2.45)
|
1.67 (0.82–3.37)
|
1.77 (1.26–2.49)*
|
Residence
|
|
|
|
|
|
|
Urban
|
1
|
1
|
1
|
1
|
1
|
1
|
Rural
|
1.03 (0.45–2.35)
|
1.07 (0.59–1.95)
|
0.61 (0.34–1.09)
|
0.86 (0.59–1.24)
|
0.80 (0.58–1.12)
|
0.89 (0.72–1.09)
|
Marital status†
|
|
|
|
|
|
|
Not in a union
|
1
|
1
|
1
|
1
|
|
1
|
Married/cohabiting
|
1.08 (0.48–2.43)
|
0.70 (0.37–1.35)
|
1.97 (1.23–3.12)**
|
1.01 (0.73–1.40)
|
|
1.27 (1.00–1.61)
|
Education
|
|
|
|
|
|
|
No formal
|
1
|
1
|
1
|
1
|
1
|
1
|
Primary
|
1.66 (0.82–3.34)
|
0.63 (0.39–1.00)
|
1.05 (0.72–1.53)
|
1.27 (0.88–1.83)
|
1.14 (0.75–1.73)
|
1.24 (1.03–1.51)*
|
Secondary
|
2.68 (0.62–4.57)
|
1.04 (0.57–1.91)
|
1.83 (1.06–3.18)*
|
1.30 (0.83–2.05)
|
1.26 (0.76–2.08)
|
1.58 (1.24–2.04)*
|
Occupation
|
|
|
|
|
|
|
Not working
|
1
|
1
|
1
|
1
|
1
|
1
|
Agriculture
|
0.27 (0.10–0.72)**
|
0.76 (0.49–1.17)
|
0.93 (0.62–1.38)
|
1.02 (0.69–1.52)
|
1.00 (0.74– 1.35)
|
0.78 (0.66–0.93)*
|
Formal employment
|
0.39 (0.11–1.41)
|
0.72 (0.42–1.25)
|
1.34 (0.89–2.01)
|
1.92 (1.34–2.77)***
|
1.00 (0 .75–1.32)
|
1.21 (1.00–1.46)*
|
Wealth, quintiles
|
|
|
|
|
|
|
Poorest
|
1
|
1
|
1
|
1
|
1
|
1
|
Poorer
|
0.88 (0.34–2.29)
|
1.77 (0.84–3.72)
|
1.02 (0.69–1.52)
|
0.90 (0.63–1.30)
|
0.92 (0.64–1.32)
|
0.91 (0.75–1.11)
|
Average
|
1.06 (0.38–2.99)
|
1.35 (0.61–3.00)
|
1.23 (0.84–1.80)
|
1.02 (0.70–1.49)
|
1.18 (0.82–1.18)
|
1.06 (0.86–1.29)
|
Richer
|
1.28 (0.46–3.56)
|
1.65 (0.79–3.43)
|
1.02 (0.68–1.52)
|
1.51 (1.06–2.16)*
|
1.50 (1.03–2.21)**
|
1.18 (0.97–1.44)
|
Richest
|
1.69 (0.68–4.21)
|
2.78 (1.19–6.50)*
|
1.44 (0.87–2.39)
|
1.76 (1.15–2.71)*
|
2.43 (1.58–3.72)**
|
1.52 (1.23–1.87)*
|
ANC attendance, visits
|
|
|
|
|
|
|
1–3
|
1
|
1
|
1
|
1
|
1
|
1
|
≥4
|
1.19 (0.65–2.16)
|
1.86 (1.22–2.83)**
|
1.18 (0.93–1.52)
|
1.27 (1.04–1.57)*
|
1.44 (1.18–1.75)*
|
1.64 (1.46–1.84)*
|
Missing
|
0.89 (0.59–1.34)
|
1.16 (0.88–1.53)
|
0.82 (0.67–1.01)
|
1.12 (0.93–1.34)
|
0.91 (0.76–1.09)
|
1.00 (0.90–1.10)
|
Parity
|
|
|
|
|
|
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
2–4
|
0.45 (0.25–0.84)*
|
0.83 (0.49–1.39)
|
0.48 (0.37–0.64)***
|
0.64 (0.50–0.81)***
|
0.84 (0.64–1.11)
|
0.66 (0.57–0.75)***
|
5+
|
0.22 (0.08–0.61)**
|
0.53 (0.27–1.01)
|
0.15 (0.10–0.23)***
|
0.22 (0.14–0.34)***
|
0.35 (0.23–0.54)**
|
0.25 (0.20–0.31)***
|
Baby’s sex
|
|
|
|
|
|
|
Male
|
1
|
1
|
1
|
1
|
1
|
1
|
Female
|
0.80 (0.55–1.18)
|
0.73 (0.55–0.97)*
|
0.81 (0.67–0.97)*
|
0.79 (0.67–0.94)**
|
0.81 (0.68–0.96)*
|
0.78 (0.71–0.86)*
|
Baby’s birth weight
|
|
|
|
|
|
|
Average
|
1
|
1
|
1
|
1
|
1
|
1
|
Low birth weight
|
1.49 (0.68–3.27)
|
1.31 (0.70–2.45)
|
0.78 (0.53–1.14)
|
1.06 (0.77–1.44)
|
0.99 (0.73–1.34)
|
1.03 (0.85–1.24)
|
Big baby
|
0.14 (0.07–0.26)***
|
0.20 (0.13–0.32)***
|
0.59 (0.45–0.78)
|
1.23 (0.96–1.58)
|
1.31 (0.97–1.77)
|
0.42 (0.36–0.48)***
|
Twin status
|
|
|
|
|
|
|
Singleton
|
1
|
1
|
1
|
1
|
1
|
1
|
Multiple
|
8.55 (3.36–21.76)***
|
1.57 (0.57–4.32)
|
6.11 (3.27–11.40)***
|
6.49 (3.93–10.74) ***
|
3.24 (1.84–5.70)**
|
4.53 (3.38–6.06)**
|
Access to information
|
|
|
|
|
|
|
No
|
1
|
1
|
1
|
1
|
1
|
1
|
Yes
|
1.45 (0.70–2.99)
|
1.27 (0.71–2.28)
|
0.75 (0.48–1.17)
|
0.98 (0.70–1.38)
|
0.92 (0.68–1.24)
|
1.06 (0.88–1.27)
|
Partner’s education
|
|
|
|
|
|
|
No formal
|
1
|
1
|
1
|
1
|
1
|
1
|
Primary
|
0.60 (0.32–1.13)
|
1.79 (1.07–2.99)*
|
0.78 (0.55–1.10)
|
1.01 (0.74–1.36)
|
1.23 (0.85–1.80)
|
1.10 (0.92–1.31)
|
Secondary and higher
|
0.47 (0.21–1.06)
|
1.03 (0.55–1.95)
|
0.90 (0.53–1.54)
|
1.15 (0.77–1.71)
|
1.40 (0.87–2.25)
|
1.08 (0.85–1.36)
|
Region
|
|
|
|
|
|
|
Kigali City
|
1
|
1
|
1
|
1
|
1
|
1
|
South
|
0.61 (0.25–1.49)
|
0.46 (0.23–0.92)*
|
1.10 (0.51–2.39)
|
1.10 (0.70–1.72)
|
1.01 (0.69–1.49)
|
0.76 (0.59–0.97)*
|
West
|
0.84 (0.38–1.89)
|
0.56 (0.26–1.18)
|
0.97 (0.43–2.19)
|
0.98 (0.65–1.48)
|
0.73 (0.49–1.07)
|
0.70 (0.54–0.90)*
|
East
|
0.74 (0.31–1.73)
|
0.36 (0.16–0.80)*
|
1.04 (0.46–2.32)
|
0.90 (0.59–1.38)
|
0.74 (0.50–1.10)
|
0.71 (0.55–0.91)*
|
North
|
0.45 (0.17–1.19)
|
0.22 (0.10–0.51)***
|
0.74 (0.31–1.75)
|
0.66 (0.42–1.05)
|
0.62 (0.40–0.96)*
|
0.47 (0.35–0.62)***
|
*p<0.05; **p<0.01; ***p<0.001; ANC, antenatal care; CI, confidence interval; † Marital status was excluded in 2019-20 due to multicollinearity |
The results from the hospital-based model revealed a similar direction of association as those of the population-based model except for higher odds of CS among women who delivered big babies in 2000 (aOR: 2.00, 95% CI 1.11–3.61), 2014-15 (aOR: 1.57, 95% CI 1.22–2.03), 2019-20 (aOR: 1.84, 95% CI 1.34–1.52) and the pooled model (aOR: 1.45, 95% CI 1.26–1.66) (Table 4).
Table 4
Factors associated with caesarean section at the health facility level in Rwanda
Characteristics
|
2000
|
2005
|
2010
|
2014
|
2019–20
|
Pooled
|
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
aOR (95% CI)
|
Age, years
|
|
|
|
|
|
|
15–19
|
1
|
1
|
1
|
1
|
1
|
1
|
20–34
|
0.69 (0.29–1.64)
|
1.26 (0.54–2.92)
|
1.23 (0.70–2.15)
|
1.09 (0.71–1.70)
|
1.18 (0.61–2.25)
|
1.13 (0.84–1.51)
|
35–49
|
1.06 (0.26–4.22)
|
1.08 (0.41–2.83)
|
1.97 (0.95–4.09)
|
1.43 (0.84–2.42)
|
1.72 (0.86–3.45)
|
1.78 (1.26–2.51)*
|
Marital status†
|
|
|
|
|
|
|
Not in a union
|
1
|
1
|
1
|
1
|
|
1
|
Married/cohabiting
|
1.18 (0.51–2.76)
|
0.63 (0.33–1.23)
|
1.87 (1.16–3.00)*
|
1.03 (0.74–1.42)
|
|
1.21 (0.95–1.54)
|
Access to information
|
|
|
|
|
|
|
No
|
1
|
1
|
1
|
1
|
1
|
1
|
Yes
|
1.31 (0.62–2.79)
|
1.29 (0.69–2.41)
|
0.73 (0.47–1.14)
|
0.95 (0.68–1.34)
|
0.93 (0.69–1.26)
|
0.94 (0.78–1.13)
|
Education
|
|
|
|
|
|
|
No formal
|
1
|
1
|
1
|
1
|
1
|
1
|
Primary
|
1.68 (0.78–3.63)
|
0.56 (0.34–0.90)*
|
1.00 (0.69–1.46)
|
1.21 (0.84–1.75)
|
1.06 (0.69–1.63)
|
1.08 (0.89–1.31)
|
Secondary
|
1.68 (0.56–5.06)
|
0.89 (0.49–1.61)
|
1.69 (0.98–2.92)
|
1.26 (0.81–1.96)
|
1.18 (0.71–1.97)
|
1.37 (1.06–1.75)*
|
Occupation
|
|
|
|
|
|
|
Not working
|
1
|
1
|
1
|
1
|
1
|
1
|
Agriculture
|
0.31 (0.11–0.92)*
|
0.83 (0.53–1.30)
|
0.91 (0.61–1.36)
|
1.04 (0.70–1.55)
|
1.02 (0.76–1.37)
|
0.82 (0.69–0.98)
|
Formal employment
|
0.42 (0.12–1.46)
|
0.76 (0.45–1.29)
|
1.24 (0.82–1.87)
|
1.93 (1.34–2.79)***
|
1.01 (0.76–1.33)
|
1.12 (0.93–1.35)*
|
Wealth, quintiles
|
|
|
|
|
|
|
Poorest
|
1
|
1
|
1
|
1
|
1
|
1
|
Poorer
|
0.92 (0.32–2.60)
|
1.57 (0.71–3.45)
|
1.05 (0.70–1.57)
|
0.84 (0.58–1.20)
|
0.86 (0.60–1.23)
|
0.94 (0.77–1.15)
|
Average
|
0.89 (0.31–2.57)
|
1.22 (0.53–2.80)
|
1.21 (0.82–1.78)
|
0.95 (0.65–1.39)
|
1.07 (0.74–1.53)
|
1.04 (0.84–1.27)
|
Richer
|
1.32 (0.47–3.73)
|
1.27 (0.62–2.62)
|
0.98 (0.65–1.48)
|
1.37 (0.96–1.97)
|
1.31 (0.89–1.91)
|
1.20 (0.98–1.46)
|
Richest
|
1.56 (0.64–3.81)
|
1.82 (0.77–4.29)
|
1.27 (0.77–2.10)
|
1.57 (1.02–2.43)*
|
2.10 (1.38–3.19)**
|
1.53 (1.23–1.89)**
|
ANC attendance, visits
|
|
|
|
|
|
|
1–3
|
1
|
1
|
1
|
1
|
1
|
1
|
≥4
|
1.11 (0.61–2.03)
|
1.56 (1.02–2.39)*
|
1.09 (0.85–1.39)
|
1.22 (0.99–1.50)
|
1.38 (1.13–1.68)*
|
1.39 (1.24–1.56)***
|
Missing
|
0.85 (0.56–1.30)
|
1.07 (0.80–1.44)
|
0.86 (0.70–1.06)
|
1.08 (0.90–1.30)
|
0.88 (0.73–1.06)
|
0.95 (0.85–1.05)
|
Parity
|
|
|
|
|
|
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
2–4
|
0.53 (0.29–0.97)*
|
1.17 (0.70–1.96)
|
0.53 (0.40–0.70)***
|
0.65 (0.51–0.82)***
|
0.86 (0.66–1.12)
|
0.70 (0.61–0.81)***
|
5+
|
0.29 (0.10–0.86)*
|
0.87 (0.45–1.68)
|
0.19 (0.13–0.29)***
|
0.25 (0.16–0.38)***
|
0.38 (0.25–0.58)**
|
0.30 (0.24–0.37)***
|
Baby’s sex
|
|
|
|
|
|
|
Male
|
1
|
1
|
1
|
1
|
1
|
1
|
Female
|
0.83 (0.55–1.24)
|
0.82 (0.61–1.10)
|
0.85 (0.70–1.03)
|
0.82 (0.69–0.97)*
|
0.82 (0.69–0.97)*
|
0.82 (0.75–0.91)**
|
Baby’s birth weight
|
|
|
|
|
|
|
Average
|
1
|
1
|
1
|
1
|
1
|
1
|
Low birth weight
|
1.28 (0.56–2.91)
|
1.34 (0.73–2.46)
|
0.80 (0.55–1.16)
|
1.03 (0.75–1.41)
|
0.98 (0.72–1.33)
|
0.99 (0.83–1.20)
|
Big baby
|
2.00 (1.11–3.61)*
|
1.42 (0.96–2.10)
|
1.30 (0.99–1.71)
|
1.57 (1.22–2.03)***
|
1.84 (1.34–1.52)**
|
1.45 (1.26–1.66)***
|
Twin status
|
|
|
|
|
|
|
Singleton
|
1
|
1
|
1
|
1
|
1
|
1
|
Multiple
|
11.07 (3.36–36.5) ***
|
1.32 (0.50–3.50)
|
6.08 (3.20–11.56)***
|
6.43 (3.88–10.66)***
|
3.63 (2.04–6.48)***
|
4.77 (3.50–6.51)***
|
Region
|
|
|
|
|
|
|
Kigali City
|
1
|
1
|
1
|
1
|
1
|
1
|
South
|
0.52 (0.21–1.29)
|
0.38 (0.18–0.78)**
|
1.04 (0.49–2.20)
|
1.09 (0.70–1.69)
|
1.00 (0.68–1.47)
|
0.80 (0.63–1.02)
|
West
|
0.75 (0.33–1.71)
|
0.53 (0.26–1.10)
|
0.85 (0.39–1.86)
|
0.94 (0.62–1.41)
|
0.71 (0.48–1.04)
|
0.70 (0.55–0.89)*
|
North
|
0.38 (0.13–1.12)
|
0.19 (0.08–0.44)***
|
0.70 (0.30–1.62)
|
0.64 (0.41–1.02)
|
0.61 (0.39–0.94)*
|
050 (0.38–0.66)***
|
East
|
0.70 (0.30–1.63)
|
0.35 (0.16–0.78)**
|
0.92 (0.42–2.00)
|
0.88 (0.57–1.34)
|
0.72 (0.49–1.06)
|
0.70 (0.55–0.89)*
|
Residence
|
|
|
|
|
|
|
Urban
|
1
|
1
|
1
|
1
|
1
|
1
|
Rural
|
1.24 (0.63–2.42)
|
1.19 (0.67–2.14)
|
0.61 (0.34–1.10)
|
0.87 (0.60–1.26)
|
0.82 (0.59–1.14)
|
0.91 (0.74–1.11)
|
Partners education
|
|
|
|
|
|
|
No formal
|
1
|
1
|
1
|
1
|
1
|
1
|
Primary
|
0.46 (0.23–0.92)*
|
1.62 (0.95–2.75)
|
0.73 (0.52–1.03)
|
0.97 (0.72–1.31)
|
1.23 (0.84–1.80)
|
0.96 (0.80–1.16)
|
Secondary and higher
|
0.35 (0.14–0.86)*
|
0.83 (0.44–1.55)
|
0.85 (0.50–1.45)
|
1.09 (0.74–1.61)
|
1.40 (0.86–2.25)
|
0.95 (0.75–1.20)
|
*p<0.05; **p<0.01; ***p<0.001; † Marital status was excluded in 2019-20 due to multicollinearity |