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Table 5 Type of data collected from Demographic and Clinical Surveillance Systems

From: A cohort study of survival following discharge from hospital in rural Tanzanian children using linked data of admissions with community-based demographic surveillance

Category of the Variable Demographic surveillance system
General Age, sex
Baseline Village, sub village, household affiliation, name, date of birth, mother or father (biological) living in the same household
Routine Quarterly (four monthly) updates on residence and demographic events (birth,death,migration-in and out, marital status change,
Category of the Variable Clinical Surveillance Systema
General Age, sex, date of birth, admission date, date of discharge from hospital
Symptoms Fever, breast feeding normally, cough, history of difficulty in breathing, fits, diarrhoea, type of stools, vomiting, dysentery, hematuria
Signs Auxiliary temperature, pulse, pallor, chest in-drawing, nasal flaring, deep breathing, crackles\crepitations, neck stiffness, bulging fontanelle, spleen size, liver size, dehydration, sunken fontanelle, oral candida, wheeze/rhonchi, impaired consciousness, able to recognize pain, abnormal positioning, flaky paint skin, orange hair, jaundice
Physical measurements Height, weight and mid upper circumference (MUAC)
Laboratory Parasitemia, blood glucose concentration, packed cell volume (PCV)
Diagnosis and treatment Diagnosis (main and underlying cause of admission),treatment and outcome of the admission
  1. Clinical surveillance system
  2. a:Laboratory methods: Thick blood films were air-dried and stained with Giemsa before being read twice, independently, by separate slide readers. The slide reading results were compared by a computer program which generated a list of slides with conflicting results, then read a third time by a senior slide reader. PCVs were read using a Hawkesley hematocrit reader at IHRDC after centrifugation of capillary blood in micro-capillary tubes