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Table 6 Spearman correlations between headache-attributed disability1 and lost household worktime (HALT questions 3 + 4) by headache type and country

From: The relationship between headache-attributed disability and lost productivity: 2. Empirical evidence from population-based studies in nine disparate countries

Country

Migraine

Probable medication-overuse headache

N

rs

p

N

rs

p

China

203

0.27

< 0.001

–

–

–

Ethiopia

479

0.28

< 0.001

23

0.05

0.82

India

372

0.05

0.30

27

−0.08

0.69

Lithuania + Luxembourg

543

0.30

< 0.001

58

−0.03

0.85

Nepal

674

0.12

0.003

53

0.17

0.22

Pakistan

483

0.23

< 0.001

104

−0.04

0.72

Russia

108

0.27

0.005

64

0.39

0.002

Spain

355

0.39

< 0.001

54

0.19

0.17

  1. HALT: Headache-Attributed Lost Time questionnaire. 1 Calculated as proportion of time in ictal state*disability weight from GBD2015 [49]; significant p-values are emboldened.