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Table 2 Frequency of traditional risk factors by labour history in the baseline population

From: Rationale, description and baseline findings of a community-based prospective cohort study of kidney function amongst the young rural population of Northwest Nicaragua

Labour historya Sex (n) Age BMI Years of Work life eGFR mL/min/1.73 m2 Prevalence of low GFRb Prevalence of risk factors
Hypertensionc Nephrolithiasis UTI
Mean (SD) Median (IQR) Median (IQR) Median (IQR) n (%) n (%) n (%) n (%)
Only sugarcane Men (n: 49) 22.9 (3.6) 22.0 (20.4–24.2) 7.0 (3.6–10.2) 130 (121–139) 5 (10.2) 1 (2.0) 0 (0) 14 (28.6)
Women (n: 14) 23.4 (3.9) 26.9 (21.8–32.2) 4.5 (3.0–9.7) 133 (123–138) 0 (0) 0 (0) 1 (7.1) 4 (28.6)
Sugarcane with any other work (including other agricultural work) Men (n: 172) 23.9 (3.7) 22.6 (21.1–24.4) 9.1 (6.0–12.2) 127 (119–137) 20 (11.6) 2 (1.3) 1 (0.6) 37 (21.5)
Women (n: 18) 24.3 (3.4) 28.1 (24.0–33.1) 10.1 (4.9–14.0) 126 (120–132) 0 (0) 0 (0) 0 (0) 8 (44.4)
Other agricultural work only Men (n: 27) 21.2 (3.4) 21.8 (20.8–22.9) 6.0 (2.0–11.5) 130 (117–138) 4 (14.8) 1 (3.7) 0 (0) 1 (3.7)
Women (n: 8) 22.1 (2.6) 23.7 (21.8–31.5) 8.0 (2.6–10.7) 128 (124–133) 0 (0) 1 (12.5) 0 (0) 2 (25.0)
Never worked in agriculture nor in sugarcane Men (n: 15) 22.0 (4.3) 21.2 (19.4–22.5) 4.0 (2.0–11.0) 130 (123–145) 0 (0) 0 (0) 0 (0) 4 (26.7)
Women (n: 47) 23.7 (3.6) 23.6 (21.4–28.1) 8.0 (4.0–12.5) 130 (126–137) 1 (2.1) 5 (10.6) 2 (4.3) 21 (44.7)
Total (350) 23.4 (3.7) 22.7 (21.0–24.9) 8.5 (4.5–12.0) 128 (121–137) 30 (8.6) 10 (2.9) 4 (1.1) 91 (26.0)
  1. BMI Body mass index, UTI Urinary Tract Infection, GFR Glomerular Filtration Rate, eGFR Estimated Glomerular Filtration Rate, IQR Interquartile range
  2. aLabour history categories grouped by current and previous occupation
  3. bLow GFR: Low glomerular filtration rate was defined as eGFR <90 mL/min/1.73 m2
  4. cHypertension: History of high blood pressure