Table 2 Crude and adjusted odds ratios (95% confidence interval) for osteoporosis in asthma and control groups

Total participants (n = 162,579)

 Asthma

2.17 (1.96–2.41)

< 0.001^a

1.74 (1.55–1.94)

< 0.001^a

 Control

1.00

1.00

Age < 53 years old (n = 80,370)

 Asthma

1.81 (1.37–2.40)

< 0.001^a

1.60 (1.20–2.12)

0.001^a

 Control

1.00

1.00

Age ≥ 53 years old (n = 82,209)

 Asthma

1.90 (1.70–2.13)

< 0.001^a

1.80 (1.59–2.03)

< 0.001^a

 Control

1.00

1.00

Men (n = 55,724)

 Asthma

2.79 (1.81–4.30)

< 0.001^a

2.17 (1.40–3.36)

0.001^a

 Control

1.00

1.00

Women (n = 106,855)

 Asthma

2.07 (1.86–2.31)

< 0.001^a

1.73 (1.54–1.94)

< 0.001^a

 Control

1.00

1.00