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Table 1 Risk factors for maternal referrals, univariate and adjusted multivariable estimates

From: Description of inter-institutional referrals after admission for labor and delivery: a prospective population based cohort study in rural Maharashtra, India

 

Mother referred N = 34,319 (100)

Univariate

Multivariable

 

Yes N (%)

No N (%)

RR (95%CI)

aRR (95%CI)a

 

n = 3236 (9.4%)

n = 31,083 (90.6)

  

Maternal Age (Years)

  < =25

2345 (72.5)

21,367 (68.7)

1.2*** (1.1–1.3)

1.1** (1.0–1.2)

 25+

891 (27.5)

9716 (31.3)

Referent

Referent

Maternal Education

 Illiterate or Primary

592 (18.3)

6267 (20.2)

Referent

Referent

 Secondary or Higher

2638 (81.5)

24,755 (79.6)

1.2*** (1.1–1.3)

1.1 (1.0–1.2)

 Missing

6 (0.2)

61 (0.2)

Maternal BMI

  < 21

1966 (60.9)

19,461 (62.6)

0.9 (0.9–1.0)

1.0 (0.9–1.0)

 21–30

1197 (37.0)

10,912 (35.1)

Referent

Referent

 30+

73 (2.1)

710 (2.3)

0.9 (0.7–1.1)

0.9 (0.7–1.2)

Maternal Anemia

 None

300 (9.3)

2876 (9.3)

Referent

Referent

 Mild

1359 (42.0)

13,074 (42.1)

0.9 (0.8–1.0)

1.1 (1.0–1.3)

 Moderate or Severe

1525 (47.1)

14,617 (47.0)

1.0 (0.9–1.0)

1.2***(1.0–1.4)

 Missing

52 (1.6)

516 (1.6)

Maternal Gestation

(weeks)

  < 37 weeks

511 (15.8)

4193 (13.5)

1.2*** (1.1–1.3)

1.2***(1.1–1.3)

  > = 37 weeks

2685 (83.0)

26,517 (85.3)

Referent

Referent

 Missing

40 (1.2)

373 (1.2)

Multiple Gestations

 No

3181 (98.3)

30,874 (99.3)

Referent

Referent

 Yes

55 (1.7)

209 (0.7)

2.1*** (1.6–2.8)

1.6***(1.2–2.1)

Fetal Heart Rate Present

 No

58 (1.8)

240 (0.8)

2.1*** (1.6–2.8)

1.7***(1.3–2.2)

 Yes

3122 (96.5)

30,619 (98.5)

Referent

Referent

 Missing

56 (1.7)

224 (0.7)

Interaction term

 Primigravida - No PRCb

1001 (30.9)

12,498 (40.2)

1.4***(1.3–1.6)

1.4***(1.3–1.6)

 Primigravida - PRC

944 (29.2)

2437 (7.8)

5.0***(4.0–6.3)

4.7***(3.8–5.8)

 Multigravida - No PRC

813 (25.1)

14,714 (47.4)

Referent

Referent

 Multigravida - PRC

478 (14.8)

1428 (4.6)

4.4***(3.6–5.6)

4.2***(3.4–5.2)

  1. **P < 0.05 ***P < 0.001
  2. aMultivariable RR adjusted for 20 PHCs (clusters) using GEE Poisson regression
  3. bOne or more Pregnancy Related Conditions in mothers