Bulletin of the World Health Organization

Neonatal mortality, risk factors and causes: a prospective population-based cohort study in urban Pakistan

Imtiaz Jehan, Hillary Harris, Sohail Salat, Amna Zeb, Naushaba Mobeen, Omrana Pasha, Elizabeth M McClure, Janet Moore, Linda L Wright & Robert L Goldenberg

Volume 87, Number 2, February 2009, 130-138

Table 2. Demographic and clinical characteristics of the mothers of infants who died within 28 days postpartum or who survived, in a prospective study in an urban Pakistani population, 2003–2005

Characteristic Neonatal death within 28 days No. (%)a Surviving infant No. (%)a RR (95% CI)
Maternal age (n = 1116)
< 20 years 3 (5.9) 57 (5.4) 1.2 (0.4–3.8)
20–35 years (reference) 39 (76.5) 910 (85.5) 1.0 (NA)
> 35 years 9 (17.7) 98 (9.2) 1.5 (1.0–4.1)
Maternal schooling (n = 1116)
None 20 (39.2) 355 (33.3) 2.1 (0.7–6.1)
≤ 5 years 12 (23.5) 188 (17.7) 1.4 (0.4–5.1)
6–10 years 14 (27.5) 334 (31.4) 1.7 (0.5–5.1)
> 10 years (reference) 5 (9.8) 188 (17.7) 1.0 (NA)
Husband employed (n = 1113)
Yes (reference) 46 (92.0) 1028 (96.7) 1.0 (NA)
No 4 (8.0) 35 (3.3) 2.4 (0.9–6.3)
Previous perinatal loss (n = 905)
Yes 12 (29.3) 192 (2.2) 1.4 (0.7–2.7)
No (reference) 29 (70.7) 672 (77.8) 1.0 (NA)
Maternal weight at study enrolment (n = 1116)
< 50 kg 20 (39.2) 335 (31.5) 1.4 (0.8–2.4)
≥ 50 kg (reference) 31 (60.8) 730 (68.5) 1.0 (NA)
Maternal height (n = 1116)
< 145 cm 6 (11.8) 75 (7.0) 1.7 (0.7–3.9)
≥ 145 cm (reference) 45 (88.2) 990 (93.0) 1.0 (NA)
Haemoglobin level at study enrolment (n = 1114)
< 8 g/dl 3 (5.9) 35 (3.3) 1.6 (0.5–5.0)
8–11 g/dl (reference) 48 (94.1) 942 (88.6) 1.0 (NA)
≥ 11 g/dl 0 (0.0) 86 (8.1) 0.0 (NA)
Maternal genital infection (n = 1116)
Yes 0 (0.0) 42 (3.9) 0.0 (NA)
No (reference) 51 (100) 1023 (96.1) 1.0 (NA)
Antenatal care visits (n = 1116)
None 1 (2.0) 42 (3.9) 0.5 (0.1–3.8)
1–4 15 (29.4) 253 (23.8) 1.3 (0.7–2.3)
> 4 (reference) 35 (68.6) 770 (72.3) 1.0 (NA)

CI, confidence interval; RR, relative risk; NA, not applicable.
a Denominators for demographic and clinical characteristics may differ due to non-response.